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Invesco Peak Retirement 2040 Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Invesco Peak Retirement™ 2040 Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective(s)
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund’s investment objective is total return over time, consistent with its strategic target allocation.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
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.
The table and Examples below do not reflect any transaction fees that may be charged by financial intermediaries or commissions that a shareholder may be required to pay directly to its financial intermediary when buying or selling Class Y or Class R6 shares. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information – Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares – Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI).
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination Apr. 30, 2023
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 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 portfolio turnover rate was 29% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 29.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Invesco Funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
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 and then redeem all of your shares at the end of those periods. This Example does not include commissions and/or other forms of compensation that investors may pay on transactions in Class Y and Class R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain equal to the Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in the first year and the Total Annual Fund Operating Expenses thereafter.
Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption You would pay the following expenses if you did not redeem your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies of the Fund
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
The Fund is a fund of funds and invests its assets in some combination of underlying mutual funds, exchange-traded funds or other pooled investment vehicles (collectively, the underlying funds), which are advised by Invesco Advisers, Inc. (Invesco or the Adviser), Invesco Capital Management LLC (Invesco Capital) or other unaffiliated advisers and are either actively or passively managed. Invesco and Invesco Capital are affiliates of each other as they are both indirect wholly-owned subsidiaries of Invesco Ltd. The Fund is designed for investors who expect to retire in 2040 and/or begin to withdraw their retirement assets around 2040. The Fund follows a glide path that adjusts the combination of underlying funds to generally become more conservative over time, until the Fund reaches its destination point, which is approximately 15 years after the target retirement date stated in the Fund's name (approximately 2055 for the Fund).
The Fund is designed to provide exposure to a number of asset classes through investments in the underlying funds and the Fund’s allocation will evolve over time. The underlying funds provide exposure to the following asset classes: U.S. equity; international equity; fixed income; alternatives; and cash. The equity underlying funds are diversified across a wide range of market capitalizations and segments, including emerging markets (i.e., those that are generally in the early stages of their industrial cycles), and employ various investment strategies and styles such as growth, value, and managed or lower volatility. The fixed income underlying funds encompass a wide range of fixed income sectors, including U.S. Government obligations, corporate investment grade and below investment grade bonds (commonly known as junk bonds), mortgage- and asset-backed securities, inflation-protected bonds, foreign debt, floating rate loans (also known as bank loans), and municipal securities. The alternatives underlying funds may include those that provide exposure to commodities, master limited partnerships, real estate, subsidiaries, and other non-traditional investments, and those that employ multi-asset, long-short, market neutral or other tactical investment strategies.
The Fund’s investment in underlying funds is subject to any limitations imposed by the Investment Company Act of 1940, as amended (1940 Act).
The Fund may invest directly in derivatives to equitize cash, hedge currency exposure and manage the duration of the Fund’s portfolio, including but not limited to futures, total return swaps, and currency forward contracts. The Fund may also use other types of derivatives through its investments in underlying funds.
The Fund is designed for investors expecting to retire and/or begin withdrawing funds around the target retirement date stated in its name. The Fund follows a glide path that adjusts the combination of underlying funds to become more conservative as the Fund approaches its target retirement date and thereafter. Specifically, the Fund is designed to provide higher equity exposure further out from its target retirement date; the higher equity exposure will decrease as exposure to fixed income, alternatives and cash increases closer to the target retirement date.
As of the date of this prospectus, the long-term glide path of the Fund and each of the other funds in the Invesco Peak Retirement Series is set forth in the table below. This Fund’s particular glide path is indicated by the retirement date in the Fund’s name. The table reflects the target asset class exposures that investment in the underlying funds provide to the Fund and each of the other Funds in the Invesco Peak Retirement Series. The Adviser may make tactical adjustments to the target asset class exposures but does not expect the Fund’s allocation to the target asset class exposures to vary by more than +/-15%; however, the Adviser may determine that a greater degree of variation is warranted to protect the Fund or achieve its investment objective. The actual asset class exposures for the Fund may differ from those shown in the chart below due to market fluctuations, cash flows and other factors.
 
The Adviser will continue to manage the Fund for approximately 15 years after the Fund reaches its target retirement date and the Fund will not reach its lowest strategic target allocation to equities until 15 years past the Fund’s target retirement date. The Fund, which has the target retirement date defined by its name, may be combined with other funds into the Invesco Peak Retirement Destination Fund (Retirement Destination Fund), in approximately 15 years after its target retirement date (approximately 2055 for the Fund). The Retirement Destination Fund does not have an investment allocation that evolves beyond the allocation in effect at that point in time. If the Fund is combined into the Retirement Destination Fund in approximately 2055, the Fund will cease to exist as a standalone fund and you will receive an equivalent amount of shares of the Retirement Destination Fund. The Board of Trustees of the Fund may effect this combination without a shareholder vote if they make certain determinations including that it is in the best interests of Fund shareholders.
The Adviser uses a three-step process to create the Fund’s portfolio including: (1) a strategic asset allocation by the Adviser among broad asset classes; (2) the actual selection by the Adviser of underlying funds to represent the broad asset classes and the determination by the Adviser of target weightings in these underlying funds; in the case where there are multiple funds in a broad asset class, the Adviser attempts to balance the amount of active risk contributed by each underlying fund in order to
determine the allocation; and (3) the ongoing monitoring of the Fund’s asset class allocations, underlying funds and target weightings in the underlying funds.
Based on the portfolio managers’ research, the Fund’s strategic asset allocations are broadly diversified to gain exposure to areas of the market that the portfolio managers believe may perform well over a full market cycle, including periods of adverse economic environments such as recessions and inflationary growth. The portfolio managers gain exposure to the desired asset class by selecting what they believe to be the most representative underlying funds. The Adviser rebalances the Fund’s investments in the underlying funds periodically to keep them at their target weightings. The Adviser may change the Fund’s asset class allocations, the underlying funds or the target weightings in the underlying funds without shareholder approval or notice to shareholders. A list of the underlying funds and their weightings at the end of the most recently completed fiscal year is located in the Fund’s annual report.
An investment in the Fund is not guaranteed, and you may experience losses, including near to, at, or after the target date. There is no guarantee that the Fund will provide adequate income at or through your retirement.
Risk [Heading] rr_RiskHeading Principal Risks of Investing in the Fund and the Underlying Funds
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
As with any mutual fund investment, loss of money is a risk of investing. 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 governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. Because the Fund is a fund of funds, the Fund is subject to the risks associated with the underlying funds in which it invests. The principal risks of investing in the Fund and the underlying funds are:
Market Risk. The market values of an underlying fund’s investments, and therefore the value of an underlying fund’s shares, will go up and down, sometimes rapidly or unpredictably. Market risk may affect a single issuer, industry or section of the economy, or it may affect the market as a whole. The value of an underlying fund’s investments may go up or down due to general market conditions that are not specifically related to the particular issuer, such as real or perceived adverse economic conditions, changes in the general outlook for revenues or corporate earnings, changes in interest or currency rates, regional or global instability, natural or environmental disasters, widespread disease or other public health issues, war, military conflict, acts of terrorism or adverse investor sentiment generally. 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 an underlying fund will rise in value.
Fund of Funds Risk. The Fund’s performance depends on that of the underlying funds in which it invests. Accordingly, the risks associated with an investment in the Fund include the risks associated with investments in the underlying funds. The Fund will indirectly pay a proportional share of the fees and expenses of the underlying funds in which it invests. There are risks that the Fund will vary from its target weightings (if any) in the underlying funds, that the underlying funds will not achieve their investment objectives, that the underlying funds’ performance may be lower than their represented asset classes, and that the Fund may withdraw its investments in an underlying fund at a disadvantageous time.
Exchange-Traded Funds Risk. In addition to the risks associated with the underlying assets held by the exchange-traded fund, investments in exchange-traded funds are subject to the following additional risks: (1) an exchange-traded fund’s shares may trade above or below its net asset value; (2) an active trading market for the exchange-traded fund’s shares may not develop or be maintained; (3) trading an exchange-traded fund’s shares may be halted by the listing exchange; (4) a passively-managed exchange-traded fund may not track the performance of the reference asset; and (5) a passively-managed exchange-traded fund may hold troubled securities. Investment in exchange-traded funds may involve
duplication of management fees and certain other expenses, as the Fund or an underlying fund indirectly bears its proportionate share of any expenses paid by the exchange-traded funds in which it invests. Further, certain exchange-traded funds in which the Fund or an underlying fund may invest are leveraged, which may result in economic leverage, permitting the Fund or an underlying fund to gain exposure that is greater than would be the case in an unlevered instrument, and potentially resulting in greater volatility.
Allocation Risk. The Fund’s investment performance depends, in part, on how its assets are allocated among the underlying funds or asset classes. The Adviser’s evaluations and assumptions regarding the asset classes or the underlying funds in which the Fund invests may be incorrect, causing the Fund to be invested (or not invested) in one or more asset classes or underlying funds at an inopportune time, which could negatively affect the Fund’s performance.
Investing in Stocks Risk. The value of an underlying fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall or rise sharply at times. Adverse events in any part of the equity or fixed-income markets may have unexpected negative effects on other market segments. Different stock markets may behave differently from each other and U.S. stock markets may move in the opposite direction from one or more foreign stock markets.
The prices of individual stocks generally do not all move in the same direction at the same time. However, individual stock prices tend to go up and down more dramatically than those of certain other types of investments, such as bonds. A variety of factors can negatively affect the price of a particular company’s stock. These factors may include, but are not limited to: poor earnings reports, a loss of customers, litigation against the company, general unfavorable performance of the company’s sector or industry, or changes in government regulations affecting the company or its industry. To the extent that securities of a particular type are emphasized (for example foreign stocks, stocks of small- or mid-cap companies, growth or value stocks, or stocks of companies in a particular industry), fund share values may fluctuate more in response to events affecting the market for those types of securities.
Growth Investing Risk. If a growth company’s earnings or stock price fails to increase as anticipated, or if its business plans do not produce the expected results, the value of its securities may decline sharply. Growth companies may be newer or smaller companies that may experience greater stock price fluctuations and risks of loss than larger, more established companies. Newer growth companies tend to retain a large part of their earnings for research, development or investments in capital assets. Therefore, they may not pay any dividends for some time. Growth investing has gone in and out of favor during past market cycles and is likely to continue to do so. During periods when growth investing is out of favor or when markets are unstable, it may be more difficult to sell growth company securities at an acceptable price. Growth stocks may also be more volatile than other securities because of investor speculation.
Small- and Mid-Capitalization Companies Risk. Investing in securities of small- and mid-capitalization companies involves greater risk than customarily is associated with investing in larger, more established companies. Stocks of small- and mid-capitalization companies tend to be more vulnerable to changing market conditions, may have little or no operating history or track record of success, and may have more limited product lines and markets, less experienced management and fewer financial resources than larger companies. These companies’ securities may be more volatile and less liquid than those of more established companies. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Smaller companies’ securities often trade in lower volumes and in many instances, are traded over-the-counter or on a regional securities exchange, where the frequency and volume of trading is substantially less than is typical for securities of larger companies traded on national securities exchanges. Therefore, the securities of smaller companies may be subject
to wider price fluctuations and it might be harder for an underlying fund to dispose of its holdings at an acceptable price when it wants to sell them. Since small- and mid-cap companies typically reinvest a high proportion of their earnings in their business, they may not pay dividends for some time, particularly if they are newer companies. It may take a substantial period of time to realize a gain on an investment in a small- or mid-cap company, if any gain is realized at all.
Foreign Securities Risk. An underlying fund's foreign investments may be adversely affected by political and social instability, changes in economic or taxation policies, difficulty in enforcing obligations, decreased liquidity or increased volatility. Foreign investments also involve the risk of the possible seizure, nationalization or expropriation of the issuer or foreign deposits (in which an underlying fund could lose its entire investments in a certain market) and the possible adoption of foreign governmental restrictions such as exchange controls. Foreign companies generally may be subject to less stringent regulations than U.S. companies, including financial reporting requirements and auditing and accounting controls, and may therefore be more susceptible to fraud or corruption. There may be less public information available about foreign companies than U.S. companies, making it difficult to evaluate those foreign companies. Unless an underlying fund has hedged its foreign currency exposure, foreign securities risk also involves the risk of negative foreign currency 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. Currency hedging strategies, if used, are not always successful.
Emerging Market Securities Risk. Emerging markets (also referred to as developing markets) are generally subject to greater market volatility, political, social and economic instability, uncertain trading markets and more governmental limitations on foreign investment than more developed markets. In addition, companies operating in emerging markets may be subject to lower trading volume and greater price fluctuations than companies in more developed markets. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Companies in emerging market countries generally may be subject to less stringent regulatory, disclosure, financial reporting, accounting, auditing and recordkeeping standards than companies in more developed countries. As a result, information, including financial information, about such companies may be less available and reliable, which can impede an underlying fund’s ability to evaluate such companies. Securities law and the enforcement of systems of taxation in many emerging market countries may change quickly and unpredictably, and the ability to bring and enforce actions (including bankruptcy, confiscatory taxation, expropriation, nationalization of a company’s assets, restrictions on foreign ownership of local companies, restrictions on withdrawing assets from the country, protectionist measures and practices such as share blocking), or to obtain information needed to pursue or enforce such actions, may be limited. In addition, the ability of foreign entities to participate in privatization programs of certain developing or emerging market countries may be limited by local law. Investments in emerging market securities may be subject to additional transaction costs, delays in settlement procedures, unexpected market closures, and lack of timely information.
Depositary Receipts Risk. Investing in depositary receipts involves the same risks as direct investments in foreign securities. In addition, the underlying issuers of certain depositary receipts are under no obligation to distribute shareholder communications or pass through any voting rights with respect to the deposited securities to the holders of such receipts. An underlying fund may therefore receive less timely information or have less control than if it invested directly in the foreign issuer.
Geographic Focus Risk. An underlying fund may from time to time have a substantial amount of its assets invested in securities of issuers located in a single country or a limited number of countries. Adverse economic,
political or social conditions in those countries may therefore have a significant negative impact on an underlying fund’s investment performance.
Sector Focus Risk. An underlying fund may from time to time have a significant amount of its assets invested in one market sector or group of related industries. In this event, an underlying fund’s performance will depend to a greater extent on the overall condition of the sector or group of industries and there is increased risk that an underlying fund will lose significant value if conditions adversely affect that sector or group of industries.
Value Investing Risk. Value investing entails the risk that if the market does not recognize that a selected security is undervalued, the prices of that security might not appreciate as anticipated. A value approach could also result in fewer investments that increase rapidly during times of market gains and could cause an underlying fund to underperform funds that use a growth or non-value approach to investing. Value investing has gone in and out of favor during past market cycles and when value investing is out of favor or when markets are unstable, the securities of “value” companies may underperform the securities of “growth” companies or the overall stock market.
Preferred Securities Risk. Preferred securities are subject to issuer-specific and market risks applicable generally to equity securities. Preferred securities also may be subordinated to bonds or other debt instruments, subjecting them to a greater risk of non-payment, may be less liquid than many other securities, such as common stocks, and generally offer no voting rights with respect to the issuer.
Rights and Warrants Risk. Warrants may be significantly less valuable or worthless on their expiration date and may also be postponed or terminated early, resulting in a partial or total loss. Rights are similar to warrants, but normally have a short duration and are distributed directly by the issuer to its shareholders. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer. Warrants and rights are highly volatile and, therefore, more susceptible to sharp declines in value than the underlying security might be. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price.
Convertible Securities Risk. The market values of convertible securities are affected by market interest rates, the risk of actual issuer default on interest or principal payments and the value of the underlying common stock into which the convertible security may be converted. Additionally, a convertible security is subject to the same types of market and issuer risks as apply to the underlying common stock. In addition, certain convertible securities are subject to involuntary conversions and may undergo principal write-downs upon the occurrence of certain triggering events, and, as a result, are subject to an increased risk of loss. Convertible securities may be rated below investment grade.
Indexing Risk. An underlying fund is operated as a passively managed index fund and, therefore, the adverse performance of a particular security necessarily will not result in the elimination of the security from the underlying fund’s portfolio. Ordinarily, the underlying fund’s adviser will not sell the underlying fund’s portfolio securities except to reflect additions or deletions of the securities that comprise the underlying fund’s underlying index, or as may be necessary to raise cash to pay underlying fund shareholders who sell underlying fund shares. As such, the underlying fund will be negatively affected by declines in the securities represented by its underlying index. Also, there is no guarantee that the underlying fund’s adviser will be able to correlate the underlying fund’s performance with that of its underlying index.
Debt Securities Risk. The prices of debt securities held by an underlying fund will be affected by changes in interest rates, the creditworthiness of the issuer and other factors. An increase in prevailing interest rates typically causes the value of existing debt securities to fall and often has a greater impact on longer-duration debt securities and higher quality debt securities. Falling interest rates will cause an underlying fund to reinvest the proceeds of debt securities that have been repaid by the issuer at lower interest rates.
Falling interest rates may also reduce an underlying fund’s distributable income because interest payments on floating rate debt instruments held by an underlying fund will decline. An underlying fund could lose money on investments in debt securities if the issuer or borrower fails to meet its obligations to make interest payments and/or to repay principal in a timely manner. If an issuer seeks to restructure the terms of its borrowings or an underlying fund is required to seek recovery upon a default in the payment of interest or the repayment of principal, an underlying fund may incur additional expenses. Changes in an issuer’s financial strength, the market’s perception of such strength or in the credit rating of the issuer or the security may affect the value of debt securities. An underlying fund’s adviser’s credit analysis may fail to anticipate such changes, which could result in buying a debt security at an inopportune time or failing to sell a debt security in advance of a price decline or other credit event.
Changing Fixed Income Market Conditions Risk. The current low interest rate environment was created in part by the Federal Reserve Board (FRB) and certain foreign central banks keeping the federal funds and equivalent foreign rates near historical lows. Increases in the federal funds and equivalent foreign rates may expose fixed income markets to heightened volatility and reduced liquidity for certain fixed income investments, particularly those with longer maturities. In addition, decreases in fixed income dealer market-making capacity may also potentially lead to heightened volatility and reduced liquidity in the fixed income markets. As a result, the value of an underlying fund’s investments and share price may decline. Changes in central bank policies could also result in higher than normal shareholder redemptions, which could potentially increase portfolio turnover and an underlying fund’s transaction costs.
Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities are subject to prepayment or call risk, which is the risk that a borrower's payments may be received earlier or later than expected due to changes in prepayment rates on underlying loans. This could result in an underlying fund reinvesting these early payments at lower interest rates, thereby reducing an underlying fund's income. Mortgage- and asset-backed securities also are subject to extension risk, which is the risk that an unexpected rise in interest rates could reduce the rate of prepayments, causing the price of the mortgage- and asset-backed securities and an underlying fund’s share price to fall. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool will adversely affect the value of mortgage-backed securities and will result in losses to an underlying fund. Privately-issued mortgage-backed securities and asset-backed securities may be less liquid than other types of securities and an underlying fund may be unable to sell these securities at the time or price it desires. During periods of market stress or high redemptions, an underlying fund may be forced to sell these securities at significantly reduced prices, resulting in losses. Liquid privately-issued mortgage-backed securities and asset-backed securities can become illiquid during periods of market stress. Privately issued mortgage-related securities are not subject to the same underwriting requirements as those with government or government-sponsored entity guarantees and, therefore, mortgage loans underlying privately issued mortgage-related securities may have less favorable collateral, credit risk, liquidity risk or other underwriting characteristics, and wider variances in interest rate, term, size, purpose and borrower characteristics. An underlying fund may invest in mortgage pools that include subprime mortgages, which are loans made to borrowers with weakened credit histories or with lower capacity to make timely payments on their mortgages. Liquidity risk is even greater for mortgage pools that include subprime mortgages.
High Yield Debt Securities (Junk Bond) Risk. Investments in high yield debt securities (“junk bonds”) and other lower-rated securities will subject an underlying fund to substantial risk of loss. These securities are considered to be speculative with respect to the issuer’s ability to pay interest and principal when due, are more susceptible to default or decline in market value and are less liquid than investment grade debt securities. Prices of high yield debt securities tend to be very volatile.
Bank Loan Risk. There are a number of risks associated with an investment in bank loans including credit risk, interest rate risk, liquidity risk and prepayment risk. Lack of an active trading market, restrictions on resale, irregular trading activity, wide bid/ask spreads and extended trade settlement periods may impair an underlying fund’s ability to sell bank loans within its desired time frame or at an acceptable price and its ability to accurately value existing and prospective investments. Extended trade settlement periods may result in cash not being immediately available to an underlying fund. As a result, an underlying fund may have to sell other investments or engage in borrowing transactions to raise cash to meet its obligations. The risk of holding bank loans is also directly tied to the risk of insolvency or bankruptcy of the issuing banks. The value of bank loans can be affected by and sensitive to changes in government regulation and to economic downturns in the United States and abroad. These risks could cause an underlying fund to lose income or principal on a particular investment, which in turn could affect an underlying fund’s returns.
Bank loans generally are floating rate loans, which are subject to interest rate risk as the interest paid on the floating rate loans adjusts periodically based on changes in widely accepted reference rates. The interest income generated by a portfolio of senior loans is often determined by a fixed credit spread over the London Interbank Offered Rate (LIBOR).
Dividend Risk. As a group, securities that pay high dividends may fall out of favor with investors and underperform companies that do not pay high dividends. Companies that pay dividends are not required to continue paying them. Therefore, there is the possibility that such companies could reduce or eliminate the payment of dividends in the future or an anticipated acceleration of dividends may not occur. Depending on market conditions, dividend paying that meet an underlying fund’s investment criteria may not be widely available for purchase by an underlying fund, which may increase the volatility of an underlying fund’s returns and limit its ability to produce current income while remaining fully diversified. High-dividend stocks may not experience high earnings growth or capital appreciation. An underlying fund’s performance during a broad market advance could suffer because dividend paying stocks may not experience the same capital appreciation as non-dividend paying stocks.
Inflation-Indexed Securities Risk. The values of inflation-indexed securities generally fluctuate in response to changes in real interest rates. Because of the inflation-adjustment feature, these securities typically have lower yields than traditional fixed-rate securities with similar maturities. Normally inflation-indexed securities will decline in price when real interest rates rise which could cause losses for the Fund or an underlying fund. As a result, an underlying fund's income from its investments in these securities is likely to fluctuate considerably more than the income distributions of its investments in more traditional fixed income securities.
Municipal Securities Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer’s regional economic conditions may affect the municipal security’s value, interest payments, repayment of principal and an underlying fund’s ability to sell the security. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities.
U.S. Government Obligations Risk. Obligations of U.S. Government agencies and authorities receive varying levels of support and may not be backed by the full faith and credit of the U.S. Government, which could affect an underlying fund’s ability to recover should they default. No assurance can be given that the U.S. Government will provide financial support to its agencies and authorities if it is not obligated by law to do so.
Money Market Fund Risk. The share price of certain underlying money market funds may fluctuate and the Fund may lose money by investing in an
underlying money market fund. The share price of money market funds can fall below the $1.00 share price. An underlying money market fund’s sponsor has no legal obligation to provide financial support to an underlying money market fund, and you should not rely on or expect that the sponsor will enter into support agreements or take other actions to provide financial support to an underlying money market fund or maintain an underlying money market fund’s $1.00 share price at any time. The credit quality of an underlying money market fund’s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on an underlying money market fund’s share price. An underlying money market fund’s share price can also be negatively affected during periods of high redemption pressures, illiquid markets, and/or significant market volatility. An underlying money market fund’s Board may elect to impose a fee upon the sale of the Fund’s shares or temporarily suspend the Fund’s ability to sell shares in the future if an underlying money market fund’s liquidity falls below required minimums because of market conditions or other factors.
LIBOR Transition Risk. An underlying fund may have investments in financial instruments that utilize the London Interbank Offered Rate (“LIBOR”) as the reference or benchmark rate for variable interest rate calculations. LIBOR is intended to measure the rate generally at which banks can lend and borrow from one another in the relevant currency on an unsecured basis. Regulators and financial industry working groups in several jurisdictions have worked over the past several years to identify alternative reference rates (“ARRs”) to replace LIBOR and to assist with the transition to the new ARRs. In connection with the transition, on March 5, 2021 the UK Financial Conduct Authority (FCA), the regulator that oversees LIBOR, announced that the majority of LIBOR rates would cease to be published or would no longer be representative on January 1, 2022. Consequently, the publication of most LIBOR rates ceased at the end of 2021, but a selection of widely used USD LIBOR rates continues to be published until June 2023 to allow for an orderly transition away from these rates. Additionally, key regulators have instructed banking institutions to cease entering into new contracts that reference these USD LIBOR settings after December 31, 2021, subject to certain limited exceptions.
There remains uncertainty and risks relating to the continuing LIBOR transition and its effects on an underlying fund and the instruments in which an underlying fund invests. For example, there can be no assurance that the composition or characteristics of any ARRs or financial instruments in which underlying fund invests that utilize ARRs will be similar to or produce the same value or economic equivalence as LIBOR or that these instruments will have the same volume or liquidity. Additionally, although regulators have generally prohibited banking institutions from entering into new contracts that reference those USD LIBOR settings that continue to exist, there remains uncertainty and risks relating to certain “legacy” USD LIBOR instruments that were issued or entered into before December 31, 2021 and the process by which a replacement interest rate will be identified and implemented into these instruments when USD LIBOR is ultimately discontinued. The effects of such uncertainty and risks in “legacy” USD LIBOR instruments held by an underlying fund could result in losses to an underlying fund.
Derivatives Risk. The value of a derivative instrument depends largely on (and is derived from) the value of an underlying security, currency, commodity, interest rate, index or other asset (each referred to as an underlying asset). In addition to risks relating to the underlying assets, the use of derivatives may include other, possibly greater, risks, including counterparty, leverage and liquidity risks. Counterparty risk is the risk that the counterparty to the derivative contract will default on its obligation to pay an underlying fund or the Fund the amount owed or otherwise perform under the derivative contract. Derivatives create leverage risk because they do not require payment up front equal to the economic exposure created by holding a position in the derivative. As a result, an adverse change in the value of the underlying asset could result in an underlying fund or the Fund sustaining a loss that is substantially greater than the amount invested in
the derivative or the anticipated value of the underlying asset, which may make the underlying fund’s or the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may also be less liquid than more traditional investments and the underlying fund or the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the underlying fund or the Fund may be most in need of liquidating its derivative positions. Derivatives may also be harder to value, less tax efficient and subject to changing government regulation that could impact the underlying fund’s or the Fund’s ability to use certain derivatives or their cost. Derivatives strategies may not always be successful. For example, derivatives used for hedging or to gain or limit exposure to a particular market segment may not provide the expected benefits, particularly during adverse market conditions. These risks are greater for certain underlying funds than mutual funds that do not use derivative instruments or that use derivative instruments to a lesser extent than certain underlying funds to implement their investment strategies.
Alternative Asset Classes Risk. Some of the underlying funds seek investments in asset classes that are expected to perform differently from primary equity and fixed-income investments. Those asset classes may be volatile or illiquid however, particularly during periods of market instability, and they may not provide the expected uncorrelated returns.
Commodity Risk. An underlying fund may have investment exposure to the commodities markets and/or a particular sector of the commodities markets, which may subject an underlying fund to greater volatility than investments in traditional securities, such as stocks and bonds. Volatility in the commodities markets may be caused by changes in overall market movements, domestic and foreign political and economic events and policies, war, acts of terrorism, changes in domestic or foreign interest rates and/or investor expectations concerning interest rates, domestic and foreign inflation rates, investment and trading activities of mutual funds, hedge funds and commodities funds, and factors such as drought, floods, weather, livestock disease, embargoes, tariffs and other regulatory developments, or supply and demand disruptions. Because an underlying fund’s performance may be linked to the performance of volatile commodities, investors should be willing to assume the risks of potentially significant fluctuations in the value of underlying fund’s shares.
Master Limited Partnership Risk. An underlying fund invests in securities of MLPs, which are subject to the following risks:
◾ 
Limited Partner Risk. An MLP is a public limited partnership or limited liability company taxed as a partnership under the Internal Revenue Code of 1986, as amended (the Code). Although the characteristics of MLPs closely resemble a traditional limited partnership, a major difference is that MLPs may trade on a public exchange or in the over-the-counter market. The risks of investing in an MLP are similar to those of investing in a partnership, including more flexible governance structures, which could result in less protection for investors than investments in a corporation. Investors in an MLP normally would not be liable for the debts of the MLP beyond the amount that the investor has contributed but investors may not be shielded to the same extent that a shareholder of a corporation would be. In certain circumstances, creditors of an MLP would have the right to seek return of capital distributed to a limited partner, which right would continue after an investor sold its investment in the MLP. In addition, MLP distributions may be reduced by fees and other expenses incurred by the MLP.
◾ 
Liquidity Risk. The ability to trade on a public exchange or in the over-the-counter market provides a certain amount of liquidity not found in many limited partnership investments. However, MLP interests may be less liquid than conventional publicly traded securities and, therefore, more difficult to trade at desirable times and/or prices.
◾ 
Interest Rate Risk. MLPs generally are considered interest-rate sensitive investments. During periods of interest rate volatility, these investments may not provide attractive returns.
◾ 
General Partner Risk. The holder of the general partner or managing member interest can be liable in certain circumstances for amounts greater than the amount of the holder’s investment in the general partner or managing member.
◾ 
MLP Tax Risk. MLPs taxed as partnerships do not pay U.S. federal income tax at the partnership level, subject to the application of certain partnership audit rules. A change in current tax law, or a change in the underlying business mix of a given MLP, however, could result in an MLP being classified as a corporation for U.S. federal income tax purposes, which would have the effect of reducing the amount of cash available for distribution by the MLP and, as a result, could result in a reduction of the value of an underlying fund’s investment, and consequently the Fund’s investment in an underlying fund and lower income.
Additionally, if an underlying fund were to invest more than 25% of its total assets in MLPs that are taxed as partnerships this could cause an underlying fund to lose its status as regulated investment company under Subchapter M of the Code.
REIT Risk/Real Estate Risk. Investments in real estate related instruments may be adversely affected by economic, legal, cultural, environmental or technological factors that affect property values, rents or occupancies. Shares of real estate related companies, which tend to be small- and mid-cap companies, may be more volatile and less liquid than larger companies. If a real estate related company defaults on certain types of debt obligations, held by an underlying fund, an underlying fund may acquire real estate directly, which involves additional risks such as environmental liabilities; difficulty in valuing and selling the real estate; and economic or regulatory changes.
Subsidiary Risk. By investing in the Subsidiary, an underlying fund is indirectly exposed to risks associated with the Subsidiary’s investments. The Subsidiary is not registered under the Investment Company Act of 1940, as amended (1940 Act), and, except as otherwise noted in this prospectus, is not subject to the investor protections of the 1940 Act. Changes in the laws of the United States and/or the Cayman Islands, under which an underlying fund and the Subsidiary, respectively, are organized, could result in the inability of an underlying fund and/or the Subsidiary to operate as described in this prospectus and the SAI, and could negatively affect an underlying fund and its shareholders.
Financial Markets Regulatory Risk. Policy changes by the U.S. government or its regulatory agencies and political events within the U.S. and abroad may, among other things, affect investor and consumer confidence and increase volatility in the financial markets, perhaps suddenly and to a significant degree, which may adversely impact an underlying fund’s operations, universe of potential investment options, and return potential.
Management Risk. The Fund is actively managed and depends heavily on its Adviser’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. Similarly, certain underlying funds are actively managed and depend heavily on their advisers’ judgments about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for their portfolios. The Fund and certain underlying funds could experience losses if these judgments prove to be incorrect. Because the investment process of the Fund relies heavily on its asset allocation process, market movements that are counter to the portfolio managers’ expectations may have a significant adverse effect on the Fund’s net asset value. Similarly, because the investment processes of certain underlying funds rely heavily on their security selection processes, market movements that are counter to the portfolio managers’ expectations may have a significant adverse effect on certain underlying funds’ net asset values. Additionally, legislative, regulatory, or tax
developments may adversely affect management of the Fund and underlying funds and, therefore, their abilities to achieve their investment objectives.
Risk Lose Money [Text] rr_RiskLoseMoney As with any mutual fund investment, loss of money is a risk of investing.
RIsk Not Insured [Text] rr_RiskNotInsured 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 governmental agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance Information
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's performance to that of a broad-based securities market benchmark and a style-specific benchmark comprised of funds with investment objectives and strategies similar to those of the Fund (in that order). The Fund's past performance (before and after taxes) is not necessarily an indication of its future performance. Fund performance reflects any applicable fee waivers and expense reimbursements. Performance returns would be lower without applicable fee waivers and expense reimbursements.
Updated performance information is available on the Fund's website at www.invesco.com/us.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's performance to that of a broad-based securities market benchmark and a style-specific benchmark comprised of funds with investment objectives and strategies similar to those of the Fund (in that order).
Performance Additional Market Index [Text] rr_PerformanceAdditionalMarketIndex The Custom Invesco Peak Retirement 2040 Benchmark is composed of the following indexes: Russell 3000® Index (reflects no deduction for fees, expenses or other taxes), MSCI EAFE® Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or taxes) and Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or other taxes). The composition of the index may change based on the Fund's target asset allocation. The current composition of the benchmark will likely be altered in the future to better reflect the Fund's objective.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.invesco.com/us
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock
The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower.
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Class A shares
Period Ended
Returns
Best Quarter
December 31, 2020
12.84%
Worst Quarter
March 31, 2020
-16.10%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 12.84%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (16.10%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for the periods ended December 31, 2021) 
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate 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.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans, 529 college savings plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown for Class A shares only and after-tax returns for other classes will vary.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
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, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans, 529 college savings plans or individual retirement accounts. After-tax returns are shown for Class A shares only and after-tax returns for other classes will vary.
Invesco Peak Retirement 2040 Fund | Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.54%)
Since Inception rr_AverageAnnualReturnSinceInception 3.57%
Invesco Peak Retirement 2040 Fund | Custom Invesco Peak Retirement 2040 Benchmark  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 15.59% [1]
Since Inception rr_AverageAnnualReturnSinceInception 11.31% [1]
Invesco Peak Retirement 2040 Fund | Class A  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less) rr_MaximumDeferredSalesChargeOverOfferingPrice none [2]
Management Fees rr_ManagementFeesOverAssets none
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 1.06%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.72%
Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.98% [3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 0.74%
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 621
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 972
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,345
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,391
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 621
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 972
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,345
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,391
Annual Return 2018 rr_AnnualReturn2018 (7.72%)
Annual Return 2019 rr_AnnualReturn2019 19.61%
Annual Return 2020 rr_AnnualReturn2020 11.87%
Annual Return 2021 rr_AnnualReturn2021 14.21%
1 Year rr_AverageAnnualReturnYear01 7.97%
Since Inception rr_AverageAnnualReturnSinceInception 7.44%
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 29, 2017
Invesco Peak Retirement 2040 Fund | Class A | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.12%
Since Inception rr_AverageAnnualReturnSinceInception 6.66%
Invesco Peak Retirement 2040 Fund | Class A | After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.01%
Since Inception rr_AverageAnnualReturnSinceInception 5.52%
Invesco Peak Retirement 2040 Fund | Class C  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees rr_ManagementFeesOverAssets none
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 1.06%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.47%
Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.98% [3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 1.49%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 252
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 676
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,227
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,546
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 152
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 676
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,227
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,546
1 Year rr_AverageAnnualReturnYear01 12.28%
Since Inception rr_AverageAnnualReturnSinceInception 8.12%
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 29, 2017
Invesco Peak Retirement 2040 Fund | Class R  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets none
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 1.06%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.97%
Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.98% [3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 0.99%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 101
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 523
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 972
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,217
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 101
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 523
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 972
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,217
1 Year rr_AverageAnnualReturnYear01 13.88%
Since Inception rr_AverageAnnualReturnSinceInception 8.63%
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 29, 2017
Invesco Peak Retirement 2040 Fund | Class Y  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets none
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 1.06%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.47%
Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.98% [3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 0.49%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 50
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 368
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 709
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,673
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 50
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 368
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 709
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,673
1 Year rr_AverageAnnualReturnYear01 14.46%
Since Inception rr_AverageAnnualReturnSinceInception 9.22%
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 29, 2017
Invesco Peak Retirement 2040 Fund | Class R5  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets none
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.89%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.30%
Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.81% [3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 0.49%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 50
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 332
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 635
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,497
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 50
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 332
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 635
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,497
1 Year rr_AverageAnnualReturnYear01 14.37%
Since Inception rr_AverageAnnualReturnSinceInception 9.20%
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 29, 2017
Invesco Peak Retirement 2040 Fund | Class R6  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets none
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.89%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.41%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.30%
Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.81% [3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 0.49%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 50
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 332
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 635
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,497
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 50
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 332
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 635
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,497
1 Year rr_AverageAnnualReturnYear01 14.46%
Since Inception rr_AverageAnnualReturnSinceInception 9.22%
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 29, 2017
[1] The Custom Invesco Peak Retirement 2040 Benchmark is composed of the following indexes: Russell 3000® Index (reflects no deduction for fees, expenses or other taxes), MSCI EAFE® Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or taxes) and Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or other taxes). The composition of the index may change based on the Fund's target asset allocation. The current composition of the benchmark will likely be altered in the future to better reflect the Fund's objective.
[2] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”
[3] Invesco Advisers, Inc. (Invesco or the Adviser) has contractually agreed to waive advisory fees and/or reimburse expenses to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (including prior fiscal year end Acquired Fund Fees and Expenses of 0.41% and excluding certain items discussed in the SAI) of Class A, Class C, Class R, Class Y, Class R5 and Class R6 shares to 0.74%, 1.49%, 0.99%, 0.49%, 0.49% and 0.49%, respectively, of the Fund’s average daily net assets (the “expense limits”). Unless Invesco continues the fee waiver agreement, it will terminate on April 30, 2023. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.