485BPOS

As filed with the United States Securities and Exchange Commission on February 13, 2019

1933 Act File No. 002-57526

1940 Act File No. 811-02699

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933	☒
Pre-Effective Amendment No.	☐
Post-Effective Amendment No. 144	☒

and/or

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940

Amendment No. 140 ☒

(Check appropriate box or boxes.)

AIM GROWTH SERIES (INVESCO GROWTH SERIES)

(Exact Name of Registrant as Specified in Charter)

11 Greenway Plaza, Suite 1000, Houston, TX 77046

(Address of Principal Executive Offices) (Zip Code)

Registrant’s Telephone Number, Including Area Code: (713) 626-1919

Jeffrey H. Kupor, Esquire

11 Greenway Plaza, Suite 1000, Houston, TX 77046

(Name and address of Agent for Service)

Copy to:

Peter A. Davidson, Esquire	Matthew R. DiClemente, Esquire
Invesco Advisers, Inc.	Stradley Ronon Stevens & Young, LLP
11 Greenway Plaza, Suite 1000	2005 Market Street, Suite 2600
Houston, TX 77046-1173	Philadelphia, PA 19103-7018

Approximate Date of Proposed Public Offering: As soon as practicable after the effective date of this Amendment.

It is proposed that this filing will become effective (check appropriate box)

☒ immediately upon filing pursuant to paragraph (b)

☐ on (date) pursuant paragraph (b)

☐ 60 days after filing pursuant to paragraph (a)

☐ on (date) pursuant to paragraph (a)

☐ 75 days after filing pursuant to paragraph (a)(2)

☐ on (date) pursuant to paragraph (a)(2) of rule 485

If appropriate, check the following box:

☐ This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under rule 485(b) under the Securities Act of 1933 and has duly caused this Amendment to its Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Houston, Texas on the 13^th day of February, 2019.

Registrant:	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
	By:	/s/ Sheri Morris
		Sheri Morris, President

Pursuant to the requirements of the Securities Act of 1933, this Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the dates indicated:

SIGNATURES	TITLE	DATE
/s/ Sheri Morris (Sheri Morris)	President & Treasurer (Principal Executive Officer)	February 13, 2019
/s/ David C. Arch* (David C. Arch)	Trustee	February 13, 2019
/s/ Bruce L. Crockett* (Bruce L. Crockett)	Chair & Trustee	February 13, 2019
/s/ Jack M. Fields* (Jack M. Fields)	Trustee	February 13, 2019
/s/ Martin L. Flanagan* (Martin L. Flanagan)	Trustee	February 13, 2019
/s/ Cynthia Hostetler* (Cynthia Hostetler)	Trustee	February 13, 2019
/s/ Eli Jones* (Eli Jones)	Trustee	February 13, 2019
/s/ Prema Mathai-Davis* (Prema Mathai-Davis)	Trustee	February 13, 2019
/s/ Teresa M. Ressel* (Teresa M. Ressel)	Trustee	February 13, 2019
/s/ Ann Barnett Stern* (Ann Barnett Stern)	Trustee	February 13, 2019
/s/ Raymond Stickel, Jr.* (Raymond Stickel, Jr.)	Trustee	February 13, 2019
/s/ Philip A. Taylor* (Philip A. Taylor)	Trustee	February 13, 2019

SIGNATURES	TITLE	DATE
/s/ Robert C. Troccoli* (Robert C. Troccoli)	Trustee	February 13, 2019
/s/ Christopher L. Wilson* (Christopher L. Wilson)	Trustee	February 13, 2019
/s/ Kelli Gallegos (Kelli Gallegos)	Vice President & Assistant Treasurer (Principal Financial Officer)	February 13, 2019

By	/s/ Sheri Morris
	Sheri Morris
	Attorney-in-Fact

* Sheri Morris, pursuant to powers of attorney dated March 28, 2018, filed in the Registrant’s Post-Effective Amendment No. 139 on April 26, 2018.

EXHIBIT INDEX

Index No.	Description of Exhibit
Ex-101.ins	XBRL Instance Document
Ex-101.sch	XBRL Taxonomy Extension Schema Document
Ex-101.cal	XBRL Taxonomy Extension Calculation Linkbase
Ex-101.def	XBRL Taxonomy Extension Definition Linkbase
Ex-101.lab	XBRL Taxonomy Extension Labels Linkbase
Ex-101.pre	XBRL Taxonomy Extension Presentation Linkbase

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Jan. 23, 2019
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Central Index Key	dei_EntityCentralIndexKey	0000202032
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Jan. 23, 2019
Document Effective Date	dei_DocumentEffectiveDate	Jan. 23, 2019
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Entity Inv Company Type	dei_EntityInvCompanyType	N-1A

XML

Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Active Allocation Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek total return.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Active Allocation Fund	Class A		Class C	Class R	Class Y
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%		none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	[1]	1.00%	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Active Allocation Fund		Class A	Class C	Class R	Class Y
Management Fees		0.10%	0.10%	0.10%	0.10%
Distribution and/or Service (12b-1) Fees		0.25%	1.00%	0.50%	none
Other Expenses	[1]	0.17%	0.17%	0.17%	0.17%
Acquired Fund Fees and Expenses	[1]	0.63%	0.63%	0.63%	0.63%
Total Annual Fund Operating Expenses		1.15%	1.90%	1.40%	0.90%
Fee Waiver and/or Expense Reimbursement	[2]	0.04%	0.04%	0.04%	0.04%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		1.11%	1.86%	1.36%	0.86%

<b>Example.</b>

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 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 for the contractual period above 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 - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Active Allocation Fund - USD ($)	1 Year	3 Years
Class A	657	892
Class C	289	593
Class R	138	439
Class Y	88	283

You would pay the following expenses if you did not redeem your shares:

Expense Example, No Redemption - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Active Allocation Fund - USD ($)	1 Year	3 Years
Class A	657	892
Class C	189	593
Class R	138	439
Class Y	88	283

<b>Portfolio Turnover. </b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds (ETFs) managed by Invesco and/or its affiliates (collectively, the “Underlying Funds”) in order to obtain exposure to various asset classes, investment strategies and types of securities.

The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the investment adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund.

The Fund generally invests between 70% and 85% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy.

The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities.

The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom.

Under normal market conditions, the Fund allocates 15-25% of its assets based on a “tactical allocation” to the Underlying Funds and to other investments. The Fund’s tactical allocation strategy adjusts the asset mix to take advantage of temporary market conditions that may present opportunities. For this tactical allocation, the Fund may invest in money market securities or may invest additional assets in any of the Underlying Funds. The Fund may use derivatives to seek income or capital gain, hedge against the risks of other investments, hedge its cash position and manage the duration of the Fund’s portfolio. Options, futures, forward contracts and swaps are some of the types of derivatives the Fund can use. The Fund’s asset allocation targets may vary in particular cases and may change over time.

The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders.

The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.

<b>Principal Risks of Investing in the Fund </b>

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 underlying funds, and therefore the Fund, are:

Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time.

Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions.

Management Risk. The alternative investment strategies, techniques and risk analyses, including the quantitative models that may be employed by the Adviser, may not produce the desired results. The Adviser may use quantitative models that measure individual securities or investments relative to each other, and such measurements may not always identify securities or investments that perform well in the future. The Adviser may be incorrect in its assessment of the value of securities or assessment of market or interest rate trends, which can result in losses to the Fund. This risk may be heightened with respect to the Fund, as compared to funds employing traditional investment strategies and techniques.

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all.

Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline.

Risks of Growth Investing. 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, 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.

Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs.

Risks of Alternative Asset Classes. 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.

Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 0.57%, 1.32%, 0.82% and 0.31%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate of 0.04%, as calculated on the average daily net assets of the Fund through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Active Allocation Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek total return.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. 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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover. </b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
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. 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).
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text]	rr_AcquiredFundFeesAndExpensesBasedOnEstimates	“Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 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 for the contractual period above 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 Narrative [Text Block]	rr_ExpenseExampleNoRedemptionNarrativeTextBlock	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds (ETFs) managed by Invesco and/or its affiliates (collectively, the “Underlying Funds”) in order to obtain exposure to various asset classes, investment strategies and types of securities. The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the investment adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund. The Fund generally invests between 70% and 85% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy. The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities. The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom. Under normal market conditions, the Fund allocates 15-25% of its assets based on a “tactical allocation” to the Underlying Funds and to other investments. The Fund’s tactical allocation strategy adjusts the asset mix to take advantage of temporary market conditions that may present opportunities. For this tactical allocation, the Fund may invest in money market securities or may invest additional assets in any of the Underlying Funds. The Fund may use derivatives to seek income or capital gain, hedge against the risks of other investments, hedge its cash position and manage the duration of the Fund’s portfolio. Options, futures, forward contracts and swaps are some of the types of derivatives the Fund can use. The Fund’s asset allocation targets may vary in particular cases and may change over time. The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders. The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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 underlying funds, and therefore the Fund, are: Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time. Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions. Management Risk. The alternative investment strategies, techniques and risk analyses, including the quantitative models that may be employed by the Adviser, may not produce the desired results. The Adviser may use quantitative models that measure individual securities or investments relative to each other, and such measurements may not always identify securities or investments that perform well in the future. The Adviser may be incorrect in its assessment of the value of securities or assessment of market or interest rate trends, which can result in losses to the Fund. This risk may be heightened with respect to the Fund, as compared to funds employing traditional investment strategies and techniques. Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer. Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all. Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall. Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments. Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline. Risks of Growth Investing. 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, 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. Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight. Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative. Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs. Risks of Alternative Asset Classes. 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. Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Active Allocation 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_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	0.10%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.17%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.63%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.15%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.04%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.11%
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).”
1 Year	rr_ExpenseExampleYear01	$ 657
3 Years	rr_ExpenseExampleYear03	892
1 Year	rr_ExpenseExampleNoRedemptionYear01	657
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 892
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Active Allocation 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_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	0.10%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.17%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.63%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.90%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.04%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.86%
1 Year	rr_ExpenseExampleYear01	$ 289
3 Years	rr_ExpenseExampleYear03	593
1 Year	rr_ExpenseExampleNoRedemptionYear01	189
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 593
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Active Allocation 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.10%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Other Expenses	rr_OtherExpensesOverAssets	0.17%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.63%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.40%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.04%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.36%
1 Year	rr_ExpenseExampleYear01	$ 138
3 Years	rr_ExpenseExampleYear03	439
1 Year	rr_ExpenseExampleNoRedemptionYear01	138
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 439
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Active Allocation 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.10%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.17%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.63%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.90%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.04%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.86%
1 Year	rr_ExpenseExampleYear01	$ 88
3 Years	rr_ExpenseExampleYear03	283
1 Year	rr_ExpenseExampleNoRedemptionYear01	88
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 283

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[2] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 0.57%, 1.32%, 0.82% and 0.31%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate of 0.04%, as calculated on the average daily net assets of the Fund through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

XML

Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Growth Investor Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek total return.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Growth Investor Fund	Class A		Class C	Class R	Class Y
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%		none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	[1]	1.00%	none	none

<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Growth Investor Fund		Class A	Class C	Class R	Class Y
Management Fees		none	none	none	none
Distribution and/or Service (12b-1) Fees		0.25%	1.00%	0.50%	none
Other Expenses	[1]	0.19%	0.19%	0.19%	0.19%
Acquired Fund Fees and Expenses	[1]	0.70%	0.70%	0.70%	0.70%
Total Annual Fund Operating Expenses	[2]	1.14%	1.89%	1.39%	0.89%

<b>Example.</b>

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 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expense Example - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Growth Investor Fund - USD ($)	1 Year	3 Years
Class A	660	892
Class C	292	594
Class R	142	440
Class Y	91	284

You would pay the following expenses if you did not redeem your shares:

Expense Example, No Redemption - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Growth Investor Fund - USD ($)	1 Year	3 Years
Class A	660	892
Class C	192	594
Class R	142	440
Class Y	91	284

<b>Portfolio Turnover.</b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds managed by Invesco and/or its affiliates (collectively, the Underlying Funds) in order to obtain exposure to various asset classes, investment strategies and types of securities.

The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the investment adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund.

The Fund generally invests between 85% and 100% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stock. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy.

The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities.

The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom.

The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation ranges at any time, in each case without prior approval from or notice to shareholders.

The Fund may use derivatives to hedge its cash position and manage the duration of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies.

The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment-grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.

<b>Principal Risks of Investing in the Fund </b>

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 underlying funds, and therefore the Fund, are:

Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time.

Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions.

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

Risks of Growth Investing. 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, 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.

Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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.

Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline.

Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs.

Risks of Alternative Asset Classes. 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.

Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 0.45%, 1.20%, 0.70% and 0.20%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Growth Investor Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek total return.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. 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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses</b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover.</b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
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. 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).
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text]	rr_AcquiredFundFeesAndExpensesBasedOnEstimates	“Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Expense Example, No Redemption Narrative [Text Block]	rr_ExpenseExampleNoRedemptionNarrativeTextBlock	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds managed by Invesco and/or its affiliates (collectively, the Underlying Funds) in order to obtain exposure to various asset classes, investment strategies and types of securities. The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the investment adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund. The Fund generally invests between 85% and 100% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stock. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy. The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities. The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom. The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation ranges at any time, in each case without prior approval from or notice to shareholders. The Fund may use derivatives to hedge its cash position and manage the duration of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies. The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment-grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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 underlying funds, and therefore the Fund, are: Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time. Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions. Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer. Risks of Growth Investing. 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, 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. Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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. Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight. Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative. Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall. Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments. Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline. Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs. Risks of Alternative Asset Classes. 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. Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Growth Investor 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_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.19%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.70%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.14%	[3]
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).”
1 Year	rr_ExpenseExampleYear01	$ 660
3 Years	rr_ExpenseExampleYear03	892
1 Year	rr_ExpenseExampleNoRedemptionYear01	660
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 892
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Growth Investor 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_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.19%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.70%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.89%	[3]
1 Year	rr_ExpenseExampleYear01	$ 292
3 Years	rr_ExpenseExampleYear03	594
1 Year	rr_ExpenseExampleNoRedemptionYear01	192
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 594
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Growth Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Other Expenses	rr_OtherExpensesOverAssets	0.19%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.70%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.39%	[3]
1 Year	rr_ExpenseExampleYear01	$ 142
3 Years	rr_ExpenseExampleYear03	440
1 Year	rr_ExpenseExampleNoRedemptionYear01	142
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 440
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Growth Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.19%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.70%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.89%	[3]
1 Year	rr_ExpenseExampleYear01	$ 91
3 Years	rr_ExpenseExampleYear03	284
1 Year	rr_ExpenseExampleNoRedemptionYear01	91
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 284

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[2] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 0.45%, 1.20%, 0.70% and 0.20%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

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Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Conservative Investor Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek total return.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Conservative Investor Fund	Class A		Class C	Class R	Class Y
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%		none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	[1]	1.00%	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Conservative Investor Fund		Class A	Class C	Class R	Class Y
Management Fees		none	none	none	none
Distribution and/or Service (12b-1) Fees		0.25%	1.00%	0.50%	none
Other Expenses	[1]	0.21%	0.21%	0.21%	0.21%
Acquired Fund Fees and Expenses	[1]	0.53%	0.53%	0.53%	0.53%
Total Annual Fund Operating Expenses		0.99%	1.74%	1.24%	0.74%
Fee Waiver and/or Expense Reimbursement	[2]	0.10%	0.10%	0.10%	0.10%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.89%	1.64%	1.14%	0.64%

<b>Example.</b>

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 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 for the contractual period above 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 - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Conservative Investor Fund - USD ($)	1 Year	3 Years
Class A	636	839
Class C	267	538
Class R	116	384
Class Y	65	227

You would pay the following expenses if you did not redeem your shares:

Expense Example, No Redemption - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Conservative Investor Fund - USD ($)	1 Year	3 Years
Class A	636	839
Class C	167	538
Class R	116	384
Class Y	65	227

<b>Portfolio Turnover.</b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds (ETFs) managed by Invesco and/or its affiliates (collectively, the “Underlying Funds”) in order to obtain exposure to various asset classes, investment strategies and types of securities.

The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the Adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund.

The Fund generally invests between 15% and 30% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy.

The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities.

The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom.

The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the investment adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders.

The Fund may use derivatives to hedge its cash position and manage the duration exposure of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies.

The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.

<b>Principal Risks of Investing in the Fund </b>

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 underlying funds, and therefore the Fund, are:

Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time.

Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions.

Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline.

Risks of Inflation-Protected Debt Securities. Inflation-indexed bonds, including Treasury Inflation-Protected Securities (TIPS), are fixed income securities whose principal value is periodically adjusted according to an identified rate of inflation. Because of this inflation adjustment feature, inflation-protected bonds typically have lower yields than conventional fixed-rate bonds with similar maturities. If inflation declines, the principal amount or the interest rate of an inflation-indexed bond will be adjusted downward. This will result in reduced income and may result in a decline in the bond’s price which could cause losses for the Fund or an Underlying Fund. Interest payments on inflation-protected debt securities can be unpredictable and will vary as the principal or interest rate is adjusted for inflation. Inflation-indexed bonds normally will decline in price when real interest rates rise which could cause losses for the Fund.

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs.

Risks of Alternative Asset Classes. 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.

Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 0.50%, 1.25%, 0.75% and 0.25%, respectively, of the Fund’s average daily net assets (the “expense limits”). In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate 0.10%, as calculated on the daily net assets of the Fund through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Conservative Investor Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek total return.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. 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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover.</b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
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. 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).
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text]	rr_AcquiredFundFeesAndExpensesBasedOnEstimates	“Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 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 for the contractual period above 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 Narrative [Text Block]	rr_ExpenseExampleNoRedemptionNarrativeTextBlock	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds (ETFs) managed by Invesco and/or its affiliates (collectively, the “Underlying Funds”) in order to obtain exposure to various asset classes, investment strategies and types of securities. The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the Adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund. The Fund generally invests between 15% and 30% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy. The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities. The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom. The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the investment adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders. The Fund may use derivatives to hedge its cash position and manage the duration exposure of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies. The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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 underlying funds, and therefore the Fund, are: Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time. Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions. Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall. Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments. Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline. Risks of Inflation-Protected Debt Securities. Inflation-indexed bonds, including Treasury Inflation-Protected Securities (TIPS), are fixed income securities whose principal value is periodically adjusted according to an identified rate of inflation. Because of this inflation adjustment feature, inflation-protected bonds typically have lower yields than conventional fixed-rate bonds with similar maturities. If inflation declines, the principal amount or the interest rate of an inflation-indexed bond will be adjusted downward. This will result in reduced income and may result in a decline in the bond’s price which could cause losses for the Fund or an Underlying Fund. Interest payments on inflation-protected debt securities can be unpredictable and will vary as the principal or interest rate is adjusted for inflation. Inflation-indexed bonds normally will decline in price when real interest rates rise which could cause losses for the Fund. Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight. Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative. Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs. Risks of Alternative Asset Classes. 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. Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Conservative Investor 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_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.21%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.53%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.99%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.89%
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).”
1 Year	rr_ExpenseExampleYear01	$ 636
3 Years	rr_ExpenseExampleYear03	839
1 Year	rr_ExpenseExampleNoRedemptionYear01	636
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 839
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Conservative Investor 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_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.21%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.53%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.74%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.64%
1 Year	rr_ExpenseExampleYear01	$ 267
3 Years	rr_ExpenseExampleYear03	538
1 Year	rr_ExpenseExampleNoRedemptionYear01	167
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 538
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Conservative Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Other Expenses	rr_OtherExpensesOverAssets	0.21%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.53%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.24%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.14%
1 Year	rr_ExpenseExampleYear01	$ 116
3 Years	rr_ExpenseExampleYear03	384
1 Year	rr_ExpenseExampleNoRedemptionYear01	116
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 384
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Conservative Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.21%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.53%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.74%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.10%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.64%
1 Year	rr_ExpenseExampleYear01	$ 65
3 Years	rr_ExpenseExampleYear03	227
1 Year	rr_ExpenseExampleNoRedemptionYear01	65
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 227

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[2] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 0.50%, 1.25%, 0.75% and 0.25%, respectively, of the Fund’s average daily net assets (the “expense limits”). In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate 0.10%, as calculated on the daily net assets of the Fund through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

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Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Moderate Investor Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek total return.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Moderate Investor Fund	Class A		Class C	Class R	Class Y
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%		none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	[1]	1.00%	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Moderate Investor Fund		Class A	Class C	Class R	Class Y
Management Fees		none	none	none	none
Distribution and/or Service (12b-1) Fees		0.25%	1.00%	0.50%	none
Other Expenses	[1]	0.17%	0.17%	0.17%	0.17%
Acquired Fund Fees and Expenses	[1]	0.58%	0.58%	0.58%	0.58%
Total Annual Fund Operating Expenses		1.00%	1.75%	1.25%	0.75%
Fee Waiver and/or Expense Reimbursement	[2]	0.07%	0.07%	0.07%	0.07%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.93%	1.68%	1.18%	0.68%

<b>Example.</b>

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 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 for the contractual period above 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 - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Moderate Investor Fund - USD ($)	1 Year	3 Years
Class A	640	844
Class C	271	544
Class R	120	390
Class Y	69	233

You would pay the following expenses if you did not redeem your shares:

Expense Example, No Redemption - Class A, C, R and Y - Invesco Oppenheimer Portfolio Series: Moderate Investor Fund - USD ($)	1 Year	3 Years
Class A	640	844
Class C	171	544
Class R	120	390
Class Y	69	233

<b>Portfolio Turnover.</b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

The Fund is a special type of mutual fund known as a “fund of funds” because it invests principally in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds managed by Invesco and/or its affiliates (collectively, the Underlying Funds) in order to obtain exposure to various asset classes, investment strategies and types of securities.

The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the Adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund.

The Fund generally invests between 50% and 70% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy.

The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities.

The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom.

The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders.

The Fund may use derivatives to hedge its cash position and manage the duration of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies.

The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.

<b>Principal Risks of Investing in the Fund </b>

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 underlying funds, and therefore the Fund, are:

Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time.

Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions.

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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.

Risks of Growth Investing. 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, 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.

Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all.

Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows.

Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate.

Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline.

Risks of Inflation-Protected Debt Securities. Inflation-indexed bonds, including Treasury Inflation-Protected Securities (TIPS), are fixed income securities whose principal value is periodically adjusted according to an identified rate of inflation. Because of this inflation adjustment feature, inflation-protected bonds typically have lower yields than conventional fixed-rate bonds with similar maturities. If inflation declines, the principal amount or the interest rate of an inflation-indexed bond will be adjusted downward. This will result in reduced income and may result in a decline in the bond’s price which could cause losses for the Fund or an Underlying Fund. Interest payments on inflation-protected debt securities can be unpredictable and will vary as the principal or interest rate is adjusted for inflation. Inflation-indexed bonds normally will decline in price when real interest rates rise which could cause losses for the Fund.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs.

Risks of Alternative Asset Classes. 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.

Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 0.47%, 1.23%, 0.72% and 0.22%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate of 0.07%, as calculated on the daily net assets of the Fund through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Moderate Investor Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek total return.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. 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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover.</b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
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. 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).
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text]	rr_AcquiredFundFeesAndExpensesBasedOnEstimates	“Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 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 for the contractual period above 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 Narrative [Text Block]	rr_ExpenseExampleNoRedemptionNarrativeTextBlock	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a special type of mutual fund known as a “fund of funds” because it invests principally in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds managed by Invesco and/or its affiliates (collectively, the Underlying Funds) in order to obtain exposure to various asset classes, investment strategies and types of securities. The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the Adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund. The Fund generally invests between 50% and 70% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy. The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities. The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom. The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders. The Fund may use derivatives to hedge its cash position and manage the duration of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies. The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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 underlying funds, and therefore the Fund, are: Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time. Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions. Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer. Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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. Risks of Growth Investing. 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, 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. Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all. Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall. Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments. Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline. Risks of Inflation-Protected Debt Securities. Inflation-indexed bonds, including Treasury Inflation-Protected Securities (TIPS), are fixed income securities whose principal value is periodically adjusted according to an identified rate of inflation. Because of this inflation adjustment feature, inflation-protected bonds typically have lower yields than conventional fixed-rate bonds with similar maturities. If inflation declines, the principal amount or the interest rate of an inflation-indexed bond will be adjusted downward. This will result in reduced income and may result in a decline in the bond’s price which could cause losses for the Fund or an Underlying Fund. Interest payments on inflation-protected debt securities can be unpredictable and will vary as the principal or interest rate is adjusted for inflation. Inflation-indexed bonds normally will decline in price when real interest rates rise which could cause losses for the Fund. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight. Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative. Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs. Risks of Alternative Asset Classes. 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. Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Moderate Investor 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_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.17%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.58%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.00%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.07%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.93%
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).”
1 Year	rr_ExpenseExampleYear01	$ 640
3 Years	rr_ExpenseExampleYear03	844
1 Year	rr_ExpenseExampleNoRedemptionYear01	640
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 844
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Moderate Investor 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_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.17%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.58%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.75%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.07%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.68%
1 Year	rr_ExpenseExampleYear01	$ 271
3 Years	rr_ExpenseExampleYear03	544
1 Year	rr_ExpenseExampleNoRedemptionYear01	171
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 544
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Moderate Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Other Expenses	rr_OtherExpensesOverAssets	0.17%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.58%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.25%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.07%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.18%
1 Year	rr_ExpenseExampleYear01	$ 120
3 Years	rr_ExpenseExampleYear03	390
1 Year	rr_ExpenseExampleNoRedemptionYear01	120
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 390
Class A, C, R and Y | Invesco Oppenheimer Portfolio Series: Moderate Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.17%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.58%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.75%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.07%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.68%
1 Year	rr_ExpenseExampleYear01	$ 69
3 Years	rr_ExpenseExampleYear03	233
1 Year	rr_ExpenseExampleNoRedemptionYear01	69
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 233

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[2] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 0.47%, 1.23%, 0.72% and 0.22%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate of 0.07%, as calculated on the daily net assets of the Fund through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

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Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Active Allocation Fund

<b>Fund Summaries - Invesco Oppenheimer Portfolio Series: Active Allocation Fund </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek total return.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Active Allocation Fund	Class R5	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Active Allocation Fund		Class R5	Class R6
Management Fees		0.10%	0.10%
Distribution and/or Service (12b-1) Fees		none	none
Other Expenses	[1]	0.13%	0.08%
Acquired Fund Fees and Expenses	[1]	0.63%	0.63%
Total Annual Fund Operating Expenses		0.86%	0.81%
Fee Waiver and/or Expense Reimbursement	[2]	0.04%	0.04%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.82%	0.77%

<b>Example. </b>

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 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 for the contractual period above 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 - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Active Allocation Fund - USD ($)	1 Year	3 Years
Class R5	84	270
Class R6	79	255

<b>Portfolio Turnover. </b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds (ETFs) managed by Invesco and/or its affiliates (collectively, the “Underlying Funds”) in order to obtain exposure to various asset classes, investment strategies and types of securities.

The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the investment adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund.

The Fund generally invests between 70% and 85% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy.

The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities.

The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom.

Under normal market conditions, the Fund allocates 15-25% of its assets based on a “tactical allocation” to the Underlying Funds and to other investments. The Fund’s tactical allocation strategy adjusts the asset mix to take advantage of temporary market conditions that may present opportunities. For this tactical allocation, the Fund may invest in money market securities or may invest additional assets in any of the Underlying Funds. The Fund may use derivatives to seek income or capital gain, hedge against the risks of other investments, hedge its cash position and manage the duration of the Fund’s portfolio. Options, futures, forward contracts and swaps are some of the types of derivatives the Fund can use. The Fund’s asset allocation targets may vary in particular cases and may change over time.

The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders.

The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.

<b>Principal Risks of Investing in the Fund </b>

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 underlying funds, and therefore the Fund, are:

Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time.

Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions.

Management Risk. The alternative investment strategies, techniques and risk analyses, including the quantitative models that may be employed by the Adviser, may not produce the desired results. The Adviser may use quantitative models that measure individual securities or investments relative to each other, and such measurements may not always identify securities or investments that perform well in the future. The Adviser may be incorrect in its assessment of the value of securities or assessment of market or interest rate trends, which can result in losses to the Fund. This risk may be heightened with respect to the Fund, as compared to funds employing traditional investment strategies and techniques.

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all.

Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline.

Risks of Growth Investing. 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, 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.

Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs.

Risks of Alternative Asset Classes. 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.

Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.26% and 0.21%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate of 0.04%, as calculated on the daily net assets of the Fund. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Active Allocation Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summaries - Invesco Oppenheimer Portfolio Series: Active Allocation Fund </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek total return.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover. </b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text]	rr_AcquiredFundFeesAndExpensesBasedOnEstimates	"Acquired Fund Fees and Expenses" are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example. </b>
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 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 for the contractual period above 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:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds (ETFs) managed by Invesco and/or its affiliates (collectively, the “Underlying Funds”) in order to obtain exposure to various asset classes, investment strategies and types of securities. The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the investment adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund. The Fund generally invests between 70% and 85% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy. The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities. The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom. Under normal market conditions, the Fund allocates 15-25% of its assets based on a “tactical allocation” to the Underlying Funds and to other investments. The Fund’s tactical allocation strategy adjusts the asset mix to take advantage of temporary market conditions that may present opportunities. For this tactical allocation, the Fund may invest in money market securities or may invest additional assets in any of the Underlying Funds. The Fund may use derivatives to seek income or capital gain, hedge against the risks of other investments, hedge its cash position and manage the duration of the Fund’s portfolio. Options, futures, forward contracts and swaps are some of the types of derivatives the Fund can use. The Fund’s asset allocation targets may vary in particular cases and may change over time. The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders. The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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 underlying funds, and therefore the Fund, are: Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time. Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions. Management Risk. The alternative investment strategies, techniques and risk analyses, including the quantitative models that may be employed by the Adviser, may not produce the desired results. The Adviser may use quantitative models that measure individual securities or investments relative to each other, and such measurements may not always identify securities or investments that perform well in the future. The Adviser may be incorrect in its assessment of the value of securities or assessment of market or interest rate trends, which can result in losses to the Fund. This risk may be heightened with respect to the Fund, as compared to funds employing traditional investment strategies and techniques. Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer. Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all. Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall. Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments. Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline. Risks of Growth Investing. 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, 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. Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight. Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative. Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs. Risks of Alternative Asset Classes. 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. Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Active Allocation 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.10%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.13%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.63%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.86%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.04%	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.82%
1 Year	rr_ExpenseExampleYear01	$ 84
3 Years	rr_ExpenseExampleYear03	$ 270
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Active Allocation 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.10%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.08%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.63%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.81%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.04%	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.77%
1 Year	rr_ExpenseExampleYear01	$ 79
3 Years	rr_ExpenseExampleYear03	$ 255

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.26% and 0.21%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate of 0.04%, as calculated on the daily net assets of the Fund. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

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Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Growth Investor Fund

<b>Fund Summaries - Invesco Oppenheimer Portfolio Series: Growth Investor Fund </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek total return.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees</b> (fees paid directly from your investment)

Shareholder Fees - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Growth Investor Fund	Class R5	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Growth Investor Fund		Class R5	Class R6
Management Fees		none	none
Distribution and/or Service (12b-1) Fees		none	none
Other Expenses	[1]	0.12%	0.07%
Acquired Fund Fees and Expenses	[1]	0.70%	0.70%
Total Annual Fund Operating Expenses	[2]	0.82%	0.77%

<b>Example.</b>

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 R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expense Example - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Growth Investor Fund - USD ($)	1 Year	3 Years
Class R5	84	262
Class R6	79	246

<b>Portfolio Turnover. </b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds managed by Invesco and/or its affiliates (collectively, the Underlying Funds) in order to obtain exposure to various asset classes, investment strategies and types of securities.

The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the investment adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund.

The Fund generally invests between 85% and 100% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stock. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy.

The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities.

The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom.

The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation ranges at any time, in each case without prior approval from or notice to shareholders.

The Fund may use derivatives to hedge its cash position and manage the duration of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies.

The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment-grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.

<b>Principal Risks of Investing in the Fund </b>

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 underlying funds, and therefore the Fund, are:

Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time.

Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions.

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

Risks of Growth Investing. 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, 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.

Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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.

Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline.

Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs.

Risks of Alternative Asset Classes. 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.

Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.15% and 0.10%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Growth Investor Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summaries - Invesco Oppenheimer Portfolio Series: Growth Investor Fund </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek total return.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees</b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover. </b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text]	rr_AcquiredFundFeesAndExpensesBasedOnEstimates	“Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds managed by Invesco and/or its affiliates (collectively, the Underlying Funds) in order to obtain exposure to various asset classes, investment strategies and types of securities. The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the investment adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund. The Fund generally invests between 85% and 100% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stock. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy. The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities. The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom. The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation ranges at any time, in each case without prior approval from or notice to shareholders. The Fund may use derivatives to hedge its cash position and manage the duration of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies. The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment-grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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 underlying funds, and therefore the Fund, are: Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time. Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions. Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer. Risks of Growth Investing. 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, 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. Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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. Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight. Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative. Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall. Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments. Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline. Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs. Risks of Alternative Asset Classes. 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. Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Growth Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.12%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.70%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.82%	[2]
1 Year	rr_ExpenseExampleYear01	$ 84
3 Years	rr_ExpenseExampleYear03	$ 262
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Growth Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.07%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.70%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.77%	[2]
1 Year	rr_ExpenseExampleYear01	$ 79
3 Years	rr_ExpenseExampleYear03	$ 246

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.15% and 0.10%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

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Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Moderate Investor Fund

<b>Fund Summaries - Invesco Oppenheimer Portfolio Series: Moderate Investor Fund </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek total return.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Moderate Investor Fund	Class R5	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Moderate Investor Fund		Class R5	Class R6
Management Fees		none	none
Distribution and/or Service (12b-1) Fees		none	none
Other Expenses	[1]	0.13%	0.08%
Acquired Fund Fees and Expenses	[1]	0.58%	0.58%
Total Annual Fund Operating Expenses		0.71%	0.66%
Fee Waiver and/or Expense Reimbursement	[2]	0.07%	0.07%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.64%	0.59%

<b>Example.</b>

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 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 for the contractual period above 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 - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Moderate Investor Fund - USD ($)	1 Year	3 Years
Class R5	65	220
Class R6	60	204

<b>Portfolio Turnover. </b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

The Fund is a special type of mutual fund known as a “fund of funds” because it invests principally in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds managed by Invesco and/or its affiliates (collectively, the Underlying Funds) in order to obtain exposure to various asset classes, investment strategies and types of securities.

The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the Adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund.

The Fund generally invests between 50% and 70% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy.

The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities.

The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom.

The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders.

The Fund may use derivatives to hedge its cash position and manage the duration of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies.

The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.

<b>Principal Risks of Investing in the Fund </b>

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 underlying funds, and therefore the Fund, are:

Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time.

Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions.

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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.

Risks of Growth Investing. 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, 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.

Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all.

Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline.

Risks of Inflation-Protected Debt Securities. Inflation-indexed bonds, including Treasury Inflation-Protected Securities (TIPS), are fixed income securities whose principal value is periodically adjusted according to an identified rate of inflation. Because of this inflation adjustment feature, inflation-protected bonds typically have lower yields than conventional fixed-rate bonds with similar maturities. If inflation declines, the principal amount or the interest rate of an inflation-indexed bond will be adjusted downward. This will result in reduced income and may result in a decline in the bond’s price which could cause losses for the Fund or an Underlying Fund. Interest payments on inflation-protected debt securities can be unpredictable and will vary as the principal or interest rate is adjusted for inflation. Inflation-indexed bonds normally will decline in price when real interest rates rise which could cause losses for the Fund.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs.

Risks of Alternative Asset Classes. 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.

Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.17% and 0.12%, respectively of the Fund's average daily net assets (the "expense limits") through at least May 28, 2021. In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate of 0.07% as calculated on the daily net assets of the Fund. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

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Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Moderate Investor Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summaries - Invesco Oppenheimer Portfolio Series: Moderate Investor Fund </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek total return.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover. </b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text]	rr_AcquiredFundFeesAndExpensesBasedOnEstimates	“Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 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 for the contractual period above 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:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a special type of mutual fund known as a “fund of funds” because it invests principally in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds managed by Invesco and/or its affiliates (collectively, the Underlying Funds) in order to obtain exposure to various asset classes, investment strategies and types of securities. The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the Adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund. The Fund generally invests between 50% and 70% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy. The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities. The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom. The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders. The Fund may use derivatives to hedge its cash position and manage the duration of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies. The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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 underlying funds, and therefore the Fund, are: Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time. Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions. Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer. Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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. Risks of Growth Investing. 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, 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. Risks of Small- and Mid-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. Mid-cap companies are generally companies that have completed their initial start-up cycle, and in many cases have established markets and developed seasoned market teams. While smaller companies might offer greater opportunities for gain than larger companies, they also may involve greater risk of loss. They may be more sensitive to changes in a company’s earnings expectations and may experience more abrupt and erratic price movements. Small- and mid-cap companies’ securities may trade in lower volumes and it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small- and mid-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. 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. Small- and mid-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small- or mid-cap company, if it realizes any gain at all. Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall. Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments. Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline. Risks of Inflation-Protected Debt Securities. Inflation-indexed bonds, including Treasury Inflation-Protected Securities (TIPS), are fixed income securities whose principal value is periodically adjusted according to an identified rate of inflation. Because of this inflation adjustment feature, inflation-protected bonds typically have lower yields than conventional fixed-rate bonds with similar maturities. If inflation declines, the principal amount or the interest rate of an inflation-indexed bond will be adjusted downward. This will result in reduced income and may result in a decline in the bond’s price which could cause losses for the Fund or an Underlying Fund. Interest payments on inflation-protected debt securities can be unpredictable and will vary as the principal or interest rate is adjusted for inflation. Inflation-indexed bonds normally will decline in price when real interest rates rise which could cause losses for the Fund. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight. Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative. Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs. Risks of Alternative Asset Classes. 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. Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Moderate Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.13%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.58%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.71%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.07%	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.64%
1 Year	rr_ExpenseExampleYear01	$ 65
3 Years	rr_ExpenseExampleYear03	$ 220
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Moderate Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.08%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.58%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.66%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.07%	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.59%
1 Year	rr_ExpenseExampleYear01	$ 60
3 Years	rr_ExpenseExampleYear03	$ 204

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.17% and 0.12%, respectively of the Fund's average daily net assets (the "expense limits") through at least May 28, 2021. In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate of 0.07% as calculated on the daily net assets of the Fund. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

XML

Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Conservative Investor Fund

<b>Fund Summaries - Invesco Oppenheimer Portfolio Series: Conservative Investor Fund </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek total return.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Conservative Investor Fund	Class R5	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Conservative Investor Fund		Class R5	Class R6
Management Fees		none	none
Distribution and/or Service (12b-1) Fees		none	none
Other Expenses	[1]	0.18%	0.13%
Acquired Fund Fees and Expenses	[1]	0.53%	0.53%
Total Annual Fund Operating Expenses		0.71%	0.66%
Fee Waiver and/or Expense Reimbursement	[2]	0.10%	0.10%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.61%	0.56%

<b>Example.</b>

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 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 for the contractual period above 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 - Class R5 and R6 - Invesco Oppenheimer Portfolio Series: Conservative Investor Fund - USD ($)	1 Year	3 Years
Class R5	62	217
Class R6	57	201

<b>Portfolio Turnover. </b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds (ETFs) managed by Invesco and/or its affiliates (collectively, the “Underlying Funds”) in order to obtain exposure to various asset classes, investment strategies and types of securities.

The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the Adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund.

The Fund generally invests between 15% and 30% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy.

The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities.

The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom.

The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the investment adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders.

The Fund may use derivatives to hedge its cash position and manage the duration exposure of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies.

The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.

<b>Principal Risks of Investing in the Fund </b>

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 underlying funds, and therefore the Fund, are:

Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time.

Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions.

Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline.

Risks of Inflation-Protected Debt Securities. Inflation-indexed bonds, including Treasury Inflation-Protected Securities (TIPS), are fixed income securities whose principal value is periodically adjusted according to an identified rate of inflation. Because of this inflation adjustment feature, inflation-protected bonds typically have lower yields than conventional fixed-rate bonds with similar maturities. If inflation declines, the principal amount or the interest rate of an inflation-indexed bond will be adjusted downward. This will result in reduced income and may result in a decline in the bond’s price which could cause losses for the Fund or an Underlying Fund. Interest payments on inflation-protected debt securities can be unpredictable and will vary as the principal or interest rate is adjusted for inflation. Inflation-indexed bonds normally will decline in price when real interest rates rise which could cause losses for the Fund.

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs.

Risks of Alternative Asset Classes. 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.

Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.20% and 0.15%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate of 0.10%, as calculated on the daily net assets of the Fund. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Conservative Investor Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summaries - Invesco Oppenheimer Portfolio Series: Conservative Investor Fund </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek total return.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover. </b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text]	rr_AcquiredFundFeesAndExpensesBasedOnEstimates	“Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 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 for the contractual period above 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:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a special type of mutual fund known as a “fund of funds” because it invests primarily in open-end funds (commonly referred to as “mutual funds”), closed-end funds, and exchange-traded funds (ETFs) managed by Invesco and/or its affiliates (collectively, the “Underlying Funds”) in order to obtain exposure to various asset classes, investment strategies and types of securities. The Fund generally categorizes each Underlying Fund as an equity, fixed-income, or alternative fund based on its investment profile. The Fund typically allocates its assets among Underlying Funds, and within a predetermined percentage range for its assets in equity funds, as determined by the Adviser in accordance with its outlook for the economy, the financial markets and the relative market valuations of the Underlying Funds. Under normal market conditions, the Adviser selects Underlying Funds based on its determination that they could provide total return for the Fund. The Fund generally invests between 15% and 30% of its assets in equity funds. Such funds invest in equity securities of domestic and foreign companies, including small, medium and large market capitalization companies, and growth and value stocks. Equity securities include common stock, preferred stock, rights and warrants, and securities convertible into common stock. Foreign equities are securities of issuers outside of the United States, including issuers in emerging or developing markets. Underlying Funds investing primarily in real estate securities, listed infrastructure securities, and master limited partnerships (MLPs) will be deemed to be “equity funds” for purposes of the Fund’s allocation strategy. The Fund generally invests the remainder of its assets in a flexible combination of fixed-income and alternative funds. Fixed-income funds generally invest in fixed income instruments such as investment-grade debt securities, below-investment-grade high yield securities (or “junk” bonds), government and government-sponsored securities, corporate bonds, securitized products, and inflation-protected debt securities. Alternative funds generally offer unique combinations of traditional equity securities and fixed-income securities or use alternative investment strategies that aim to offer diversification beyond traditional equity and fixed-income securities. The Fund is not required to invest its assets in any specified percentages of fixed-income or alternative funds. The Fund does not limit its investment in Underlying Funds that invest primarily in foreign securities. The Fund’s investment in Underlying Funds is subject to any limitations imposed by the Investment Company Act of 1940 or any exemptive relief therefrom. The Fund may temporarily exceed its percentage range for its assets in equity funds for short periods and may alter the percentage range when it deems appropriate. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. The Adviser monitors the Underlying Fund selections and periodically rebalances the Fund’s investments to bring them back within their asset allocation target ranges. In response to changing market or economic conditions, the investment adviser may change any or all of the Underlying Funds managed by Invesco and/or its affiliates, including using funds that may be created in the future, or change the Fund’s asset allocation target ranges at any time, in each case without prior approval from or notice to shareholders. The Fund may use derivatives to hedge its cash position and manage the duration exposure of the Fund’s portfolio, including but not limited to futures, total return swaps, and forward contracts. The Fund may also use other types of derivatives that are consistent with its investment objective and investment strategies. The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco Oppenheimer family of funds. This may also include shares of funds that provide exposure to inflation protected debt securities and short-term investment grade debt securities. This will also generally occur at times when there is an inability to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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 underlying funds, and therefore the Fund, are: Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time. Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions. Risks of Investing in Debt Securities. Debt securities may be subject to interest rate risk, duration risk, credit risk, credit spread risk, extension risk, reinvestment risk, prepayment risk and event risk. Interest rate risk is the risk that when prevailing interest rates fall, the values of already-issued debt securities generally rise; and when prevailing interest rates rise, the values of already-issued debt securities generally fall, and therefore, those debt securities may be worth less than the amount the Underlying Fund paid for them or valued them. When interest rates change, the values of longer-term debt securities usually change more than the values of shorter-term debt securities. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities will be more volatile and thus more likely to decline in price, and to a greater extent, in a rising interest rate environment than shorter-duration debt securities. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. If an issuer fails to pay interest or repay principal, the Underlying Fund’s income or share value might be reduced. Adverse news about an issuer or a downgrade in an issuer’s credit rating, for any reason, can also reduce the market value of the issuer’s securities. “Credit spread” is the difference in yield between securities that is due to differences in their credit quality. There is a risk that credit spreads may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Underlying Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Underlying Fund might have difficulty selling them promptly at an acceptable price. Extension risk is the risk that an increase in interest rates could cause prepayments on a debt security to occur at a slower rate than expected. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment risk is the risk that when interest rates fall the Underlying Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment risk is the risk that the issuer may redeem the security prior to the expected maturity or that borrowers may repay the loans that underlie these securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to the expected maturity. The Underlying Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Event risk is the risk that an issuer could be subject to an event, such as a buyout or debt restructuring, that interferes with its ability to make timely interest and principal payments and cause the value of its debt securities to fall. Fixed-Income Market Risks. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. During times of reduced market liquidity, the Underlying Fund may not be able to readily sell bonds at the prices at which they are carried on the Underlying Fund’s books and could experience a loss. If the Underlying Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices, particularly for lower-rated and unrated securities. An unexpected increase in redemptions by the Underlying Fund shareholders (including requests from shareholders who may own a significant percentage of the Underlying Fund’s shares), which may be triggered by general market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Underlying Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Underlying Fund’s share price and increase the Underlying Fund’s liquidity risk, Underlying Fund expenses and/or taxable distributions, if applicable. As of the date of this prospectus, interest rates in the U.S. are near historically low levels, increasing the exposure of bond investors to the risks associated with rising interest rates. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets. Under some circumstances, those concerns may cause reduced liquidity in certain debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). A lack of liquidity or other adverse credit market conditions may hamper the Underlying Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments. Risks of Below-Investment-Grade Securities. As compared to investment-grade debt securities, below-investment-grade debt securities (also referred to as “junk” bonds), whether rated or unrated, may be subject to greater price fluctuations and increased credit risk, as the issuer might not be able to pay interest and principal when due, especially during times of weakening economic conditions or rising interest rates. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. The market for below-investment-grade securities may be less liquid and therefore these securities may be harder to value or sell at an acceptable price, especially during times of market volatility or decline. Risks of Inflation-Protected Debt Securities. Inflation-indexed bonds, including Treasury Inflation-Protected Securities (TIPS), are fixed income securities whose principal value is periodically adjusted according to an identified rate of inflation. Because of this inflation adjustment feature, inflation-protected bonds typically have lower yields than conventional fixed-rate bonds with similar maturities. If inflation declines, the principal amount or the interest rate of an inflation-indexed bond will be adjusted downward. This will result in reduced income and may result in a decline in the bond’s price which could cause losses for the Fund or an Underlying Fund. Interest payments on inflation-protected debt securities can be unpredictable and will vary as the principal or interest rate is adjusted for inflation. Inflation-indexed bonds normally will decline in price when real interest rates rise which could cause losses for the Fund. Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Other Equity Securities. Most convertible securities are subject to the risks and price fluctuations of the underlying stock. They may be subject to the risk that the issuer will not be able to pay interest or dividends when due and their market value may change based on changes in the issuer’s credit rating or the market’s perception of the issuer’s creditworthiness. Some convertible preferred stocks have a conversion or call feature that allows the issuer to redeem the stock before the conversion date, which could diminish the potential for capital appreciation on the investment. The fixed dividend rate of preferred stocks may cause their prices to behave more like those of debt securities. If interest rates rise, the value of preferred stock having a fixed dividend rate tends to fall. Preferred stock generally ranks behind debt securities in claims for dividends and assets of the issuer in a liquidation or bankruptcy. The price of a warrant does not necessarily move parallel to the price of the underlying security and is generally more volatile than that of the underlying security. Rights are similar to warrants, but normally have a shorter duration. The market for rights or warrants may be very limited and it may be difficult to sell them promptly at an acceptable price. Rights and warrants have no voting rights, receive no dividends and have no rights with respect to the assets of the issuer. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight. Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative. Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Risks of Derivative Investments. Derivatives held by the Fund or an Underlying Fund may be volatile and may involve significant risks. The underlying security or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. Some derivatives have the potential for unlimited loss, regardless of the size of the initial investment. The Fund or an Underlying Fund may also lose money on a derivative instrument if the issuer or counterparty fails to pay the amount due. Certain derivative instruments may be illiquid, making it difficult to close out an unfavorable position. Derivative investments can increase portfolio turnover and transaction costs. As a result of these risks, the Fund or an Underlying Fund could realize little to no income or lose money from its investment, or a hedge might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives are required to be executed on a regulated market and/or cleared through a clearinghouse. Entering into a derivative transaction with a clearinghouse may entail further risks and costs. Risks of Alternative Asset Classes. 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. Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Conservative Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.18%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.53%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.71%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.10%	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.61%
1 Year	rr_ExpenseExampleYear01	$ 62
3 Years	rr_ExpenseExampleYear03	$ 217
Class R5 and R6 | Invesco Oppenheimer Portfolio Series: Conservative Investor 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.13%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.53%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.66%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.10%	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.56%
1 Year	rr_ExpenseExampleYear01	$ 57
3 Years	rr_ExpenseExampleYear03	$ 201

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.20% and 0.15%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. In addition, Invesco has contractually agreed to waive fees and/or reimburse certain Fund expenses at an annual rate of 0.10%, as calculated on the daily net assets of the Fund. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees. The Adviser is not required to waive or reimburse Fund expenses in excess of the amount of indirect management fees earned from investments in the Underlying Funds.

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Class A, C, R and Y | Invesco Oppenheimer International Diversified Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek capital appreciation.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class A, C, R and Y - Invesco Oppenheimer International Diversified Fund	Class A		Class C	Class R	Class Y
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%		none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	[1]	1.00%	none	none

<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class A, C, R and Y - Invesco Oppenheimer International Diversified Fund		Class A	Class C	Class R	Class Y
Management Fees		none	none	none	none
Distribution and/or Service (12b-1) Fees		0.25%	1.00%	0.50%	none
Other Expenses	[1]	0.23%	0.23%	0.23%	0.23%
Acquired Fund Fees and Expenses	[1]	0.83%	0.83%	0.83%	0.83%
Total Annual Fund Operating Expenses		1.31%	2.06%	1.56%	1.06%
Fee Waiver and/or Expense Reimbursement	[2]	0.02%	0.02%	0.02%	0.07%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		1.29%	2.04%	1.54%	0.99%

<b>Example. </b>

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 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 for the contractual period above 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 - Class A, C, R and Y - Invesco Oppenheimer International Diversified Fund - USD ($)	1 Year	3 Years
Class A	674	939
Class C	307	642
Class R	157	489
Class Y	101	323

You would pay the following expenses if you did not redeem your shares:

Expense Example, No Redemption - Class A, C, R and Y - Invesco Oppenheimer International Diversified Fund - USD ($)	1 Year	3 Years
Class A	674	939
Class C	207	642
Class R	157	489
Class Y	101	323

<b>Portfolio Turnover. </b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

The Fund is a special type of mutual fund known as a “fund of funds” because it primarily invests in other mutual funds. Those funds are referred to as the “Underlying Funds.” The Underlying Funds mainly invest in foreign equity securities, which are securities of companies organized under the laws of a foreign country, or with a substantial portion of their operations, assets, revenue or profits from businesses, investments or sales outside the United States or securities traded primarily in foreign securities markets. Certain Underlying Funds may invest 100% of their assets in securities of foreign companies. Some Underlying Funds may invest in emerging or developing markets as well as in developed markets throughout the world. From time to time an Underlying Fund may place greater emphasis on investing in one or more particular industry or region. Under normal market conditions, the Fund will invest in shares of some or all of the following Invesco Oppenheimer global or international funds that were chosen based on the Adviser’s determination that they could provide capital appreciation:

• Invesco Oppenheimer Developing Markets Fund
• Invesco Oppenheimer International Growth Fund
• Invesco Oppenheimer International Small-Mid Company Fund
• Invesco Oppenheimer International Equity Fund

The Fund will typically invest in a minimum of three of the Underlying Funds and will not invest more than 50% of its net assets in any single Underlying Fund. The Adviser may change the weightings in the Underlying Funds at any time, without prior approval from or notice to shareholders. “Normal market conditions” are when securities markets and economic conditions are not unstable or adverse, in the judgment of the Adviser.

The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. In determining how much of the Fund’s assets to invest in an Underlying Fund, the Adviser will seek to diversify the Fund’s investments internationally and among different investment styles, larger and smaller market capitalizations and between developed and emerging markets. The Fund may also change its allocations based on the Adviser’s evaluation of economic factors that it believes are not reflected in particular markets in which one or more of the Underlying Funds invest or on current or anticipated changes in currency valuations. The Adviser monitors the Underlying Fund selections and in response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds, including using funds that may be created in the future, without prior approval from or notice to shareholders. Although the term “Underlying Funds” refers to Invesco Oppenheimer Developing Markets Fund, Invesco Oppenheimer International Growth Fund, Invesco Oppenheimer International Small-Mid Company Fund, and Invesco Oppenheimer International Equity Fund, for ease of reference, the Fund also uses the term “Underlying Funds” to refer to Underlying Funds that may be used in the future.

The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco family of funds. This will generally occur at times when the Fund is unable to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.

<b>Principal Risks of Investing in the Fund </b>

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 underlying funds, and therefore the Fund, are:

Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. The investment objective and principal investment strategies of each of the Underlying Funds are described in the section “More Information About the Underlying Funds” beginning on page 12 of this prospectus. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time.

Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk.

Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 1.29%, 2.04%, 1.54% and 0.99%, respectively, of the Fund's average daily net assets (the "expense limits") through at least May 28, 2021. Invesco Advisers has also contractually agreed to waive a portion of the Acquiring Fund's management fee in an amount equal to the net management fee that Invesco Advisers earns on the Fund's investments in certain affiliated funds, which will have the effect of reducing the Acquired Fund Fees and Expenses through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class A, C, R and Y | Invesco Oppenheimer International Diversified Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek capital appreciation.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. 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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses</b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover. </b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
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. 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).
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text]	rr_AcquiredFundFeesAndExpensesBasedOnEstimates	“Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example. </b>
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 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 for the contractual period above 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 Narrative [Text Block]	rr_ExpenseExampleNoRedemptionNarrativeTextBlock	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a special type of mutual fund known as a “fund of funds” because it primarily invests in other mutual funds. Those funds are referred to as the “Underlying Funds.” The Underlying Funds mainly invest in foreign equity securities, which are securities of companies organized under the laws of a foreign country, or with a substantial portion of their operations, assets, revenue or profits from businesses, investments or sales outside the United States or securities traded primarily in foreign securities markets. Certain Underlying Funds may invest 100% of their assets in securities of foreign companies. Some Underlying Funds may invest in emerging or developing markets as well as in developed markets throughout the world. From time to time an Underlying Fund may place greater emphasis on investing in one or more particular industry or region. Under normal market conditions, the Fund will invest in shares of some or all of the following Invesco Oppenheimer global or international funds that were chosen based on the Adviser’s determination that they could provide capital appreciation: Invesco Oppenheimer Developing Markets Fund Invesco Oppenheimer International Growth Fund Invesco Oppenheimer International Small-Mid Company Fund Invesco Oppenheimer International Equity Fund The Fund will typically invest in a minimum of three of the Underlying Funds and will not invest more than 50% of its net assets in any single Underlying Fund. The Adviser may change the weightings in the Underlying Funds at any time, without prior approval from or notice to shareholders. “Normal market conditions” are when securities markets and economic conditions are not unstable or adverse, in the judgment of the Adviser. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. In determining how much of the Fund’s assets to invest in an Underlying Fund, the Adviser will seek to diversify the Fund’s investments internationally and among different investment styles, larger and smaller market capitalizations and between developed and emerging markets. The Fund may also change its allocations based on the Adviser’s evaluation of economic factors that it believes are not reflected in particular markets in which one or more of the Underlying Funds invest or on current or anticipated changes in currency valuations. The Adviser monitors the Underlying Fund selections and in response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds, including using funds that may be created in the future, without prior approval from or notice to shareholders. Although the term “Underlying Funds” refers to Invesco Oppenheimer Developing Markets Fund, Invesco Oppenheimer International Growth Fund, Invesco Oppenheimer International Small-Mid Company Fund, and Invesco Oppenheimer International Equity Fund, for ease of reference, the Fund also uses the term “Underlying Funds” to refer to Underlying Funds that may be used in the future. The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco family of funds. This will generally occur at times when the Fund is unable to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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 underlying funds, and therefore the Fund, are: Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. The investment objective and principal investment strategies of each of the Underlying Funds are described in the section “More Information About the Underlying Funds” beginning on page 12 of this prospectus. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time. Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight. Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative. Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class A, C, R and Y | Invesco Oppenheimer International Diversified 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_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.23%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.83%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.31%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.02%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.29%
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)."
1 Year	rr_ExpenseExampleYear01	$ 674
3 Years	rr_ExpenseExampleYear03	939
1 Year	rr_ExpenseExampleNoRedemptionYear01	674
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 939
Class A, C, R and Y | Invesco Oppenheimer International Diversified 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_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.23%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.83%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.06%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.02%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	2.04%
1 Year	rr_ExpenseExampleYear01	$ 307
3 Years	rr_ExpenseExampleYear03	642
1 Year	rr_ExpenseExampleNoRedemptionYear01	207
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 642
Class A, C, R and Y | Invesco Oppenheimer International Diversified 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Other Expenses	rr_OtherExpensesOverAssets	0.23%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.83%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.56%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.02%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.54%
1 Year	rr_ExpenseExampleYear01	$ 157
3 Years	rr_ExpenseExampleYear03	489
1 Year	rr_ExpenseExampleNoRedemptionYear01	157
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 489
Class A, C, R and Y | Invesco Oppenheimer International Diversified 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.23%	[2]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.83%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.06%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.07%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.99%
1 Year	rr_ExpenseExampleYear01	$ 101
3 Years	rr_ExpenseExampleYear03	323
1 Year	rr_ExpenseExampleNoRedemptionYear01	101
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 323

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[2] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 1.29%, 2.04%, 1.54% and 0.99%, respectively, of the Fund's average daily net assets (the "expense limits") through at least May 28, 2021. Invesco Advisers has also contractually agreed to waive a portion of the Acquiring Fund's management fee in an amount equal to the net management fee that Invesco Advisers earns on the Fund's investments in certain affiliated funds, which will have the effect of reducing the Acquired Fund Fees and Expenses through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees.

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Class A, C, R and Y | Invesco Oppenheimer Main Street Small Cap Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek capital appreciation.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class A, C, R and Y - Invesco Oppenheimer Main Street Small Cap Fund	Class A		Class C	Class R	Class Y
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%		none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	[1]	1.00%	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class A, C, R and Y - Invesco Oppenheimer Main Street Small Cap Fund		Class A	Class C	Class R	Class Y
Management Fees		0.72%	0.72%	0.72%	0.72%
Distribution and/or Service (12b-1) Fees		0.25%	1.00%	0.50%	none
Other Expenses	[1]	0.35%	0.35%	0.35%	0.35%
Total Annual Fund Operating Expenses		1.32%	2.07%	1.57%	1.07%
Fee Waiver and/or Expense Reimbursement	[2]	0.12%	0.13%	0.12%	0.17%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		1.20%	1.94%	1.45%	0.90%

<b>Example.</b>

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 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 for the contractual period above 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 - Class A, C, R and Y - Invesco Oppenheimer Main Street Small Cap Fund - USD ($)	1 Year	3 Years
Class A	666	922
Class C	297	623
Class R	148	472
Class Y	92	306

You would pay the following expenses if you did not redeem your shares:

Expense Example, No Redemption - Class A, C, R and Y - Invesco Oppenheimer Main Street Small Cap Fund - USD ($)	1 Year	3 Years
Class A	666	922
Class C	197	623
Class R	148	472
Class Y	92	306

<b>Portfolio Turnover.</b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

Under normal market conditions, the Fund will invest at least 80% of its net assets, including any borrowings for investment purposes, in securities of “small-cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers small-cap companies to be those having a market capitalization in the range of the Russell 2000^® Index. The capitalization range of that index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell 2000^® Index generally widens over time and it is reconstituted annually to preserve its market cap characteristics. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition.

Although the Fund mainly invests in U.S. companies, it can invest in securities issued by companies or governments in any country. The Fund primarily invests in common stock but may also invest in other types of securities that are consistent with its investment objective.

The portfolio is constructed and regularly monitored based upon several analytical tools, including quantitative investment models. Quantitative models are used as part of the idea generation process to rank securities within each sector to identify potential buy and sell candidates for further fundamental analysis. The Fund aims to maintain a broadly diversified portfolio across major economic sectors by applying investment parameters for both sector and position size.

In constructing the portfolio, the Fund seeks to limit exposure to so-called “top-down” or “macro” risks, such as overall stock market movements, economic cycles, and interest rate or currency fluctuations. Instead, the portfolio managers seek to add value by selecting individual securities with superior company-specific fundamental attributes or relative valuations that they expect to outperform their industry and sector peers. This is commonly referred to as a “bottom-up” approach to portfolio construction.

The portfolio managers consider stock rankings, benchmark weightings and capitalization outlooks in determining security weightings for individual issuers.

The portfolio managers might sell a security if, among other criteria, the price is approaching their price target, if the company’s competitive position has deteriorated or the company’s management has performed poorly, or if they have identified more attractive investment prospects.

<b>Principal Risks of Investing in the Fund </b>

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. The principal risks of investing in the Fund are:

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry.

Risks of Small-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. While smaller companies might offer greater opportunities for gain than larger companies, they also involve greater risk of loss. 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 it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. Since small-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. Small-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small-sized company, if it realizes any gain at all.

Risks of Quantitative Models. The portfolio managers use quantitative models as part of the idea generation process. Quantitative models are based upon many factors that measure individual securities relative to each other. Such models, which can be adversely affected by errors or imperfections in the factors or the data on which measurements are based, any technical issues with construction or implementation of the model, or a failure to perform as expected, may not identify securities that perform well in the future.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 1.20%, 1.94%, 1.45% and 0.90%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class A, C, R and Y | Invesco Oppenheimer Main Street Small Cap Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek capital appreciation.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. 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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover.</b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
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. 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).
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 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 for the contractual period above 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 Narrative [Text Block]	rr_ExpenseExampleNoRedemptionNarrativeTextBlock	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the Fund will invest at least 80% of its net assets, including any borrowings for investment purposes, in securities of “small-cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers small-cap companies to be those having a market capitalization in the range of the Russell 2000® Index. The capitalization range of that index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell 2000® Index generally widens over time and it is reconstituted annually to preserve its market cap characteristics. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition. Although the Fund mainly invests in U.S. companies, it can invest in securities issued by companies or governments in any country. The Fund primarily invests in common stock but may also invest in other types of securities that are consistent with its investment objective. The portfolio is constructed and regularly monitored based upon several analytical tools, including quantitative investment models. Quantitative models are used as part of the idea generation process to rank securities within each sector to identify potential buy and sell candidates for further fundamental analysis. The Fund aims to maintain a broadly diversified portfolio across major economic sectors by applying investment parameters for both sector and position size. In constructing the portfolio, the Fund seeks to limit exposure to so-called “top-down” or “macro” risks, such as overall stock market movements, economic cycles, and interest rate or currency fluctuations. Instead, the portfolio managers seek to add value by selecting individual securities with superior company-specific fundamental attributes or relative valuations that they expect to outperform their industry and sector peers. This is commonly referred to as a “bottom-up” approach to portfolio construction. The portfolio managers consider stock rankings, benchmark weightings and capitalization outlooks in determining security weightings for individual issuers. The portfolio managers might sell a security if, among other criteria, the price is approaching their price target, if the company’s competitive position has deteriorated or the company’s management has performed poorly, or if they have identified more attractive investment prospects.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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. The principal risks of investing in the Fund are: Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry. Risks of Small-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. While smaller companies might offer greater opportunities for gain than larger companies, they also involve greater risk of loss. 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 it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. Since small-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. Small-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small-sized company, if it realizes any gain at all. Risks of Quantitative Models. The portfolio managers use quantitative models as part of the idea generation process. Quantitative models are based upon many factors that measure individual securities relative to each other. Such models, which can be adversely affected by errors or imperfections in the factors or the data on which measurements are based, any technical issues with construction or implementation of the model, or a failure to perform as expected, may not identify securities that perform well in the future.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class A, C, R and Y | Invesco Oppenheimer Main Street Small Cap 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_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	0.72%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.35%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.32%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.12%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.20%
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).”
1 Year	rr_ExpenseExampleYear01	$ 666
3 Years	rr_ExpenseExampleYear03	922
1 Year	rr_ExpenseExampleNoRedemptionYear01	666
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 922
Class A, C, R and Y | Invesco Oppenheimer Main Street Small Cap 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_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	0.72%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.35%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.07%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.13%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.94%
1 Year	rr_ExpenseExampleYear01	$ 297
3 Years	rr_ExpenseExampleYear03	623
1 Year	rr_ExpenseExampleNoRedemptionYear01	197
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 623
Class A, C, R and Y | Invesco Oppenheimer Main Street Small Cap 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.72%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Other Expenses	rr_OtherExpensesOverAssets	0.35%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.57%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.12%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.45%
1 Year	rr_ExpenseExampleYear01	$ 148
3 Years	rr_ExpenseExampleYear03	472
1 Year	rr_ExpenseExampleNoRedemptionYear01	148
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 472
Class A, C, R and Y | Invesco Oppenheimer Main Street Small Cap 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.72%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.35%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.07%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.17%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.90%
1 Year	rr_ExpenseExampleYear01	$ 92
3 Years	rr_ExpenseExampleYear03	306
1 Year	rr_ExpenseExampleNoRedemptionYear01	92
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 306

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[2] “Other Expenses” are based on estimated amounts for the current fiscal year.

[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 (excluding certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 1.20%, 1.94%, 1.45% and 0.90%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Class R5 and R6 | Invesco Oppenheimer International Diversified Fund

<b>Fund Summaries </b> - <b>INVESCO OPPENHEIMER INTERNATIONAL DIVERSIFIED FUND </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek capital appreciation.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class R5 and R6 - Invesco Oppenheimer International Diversified Fund	Class R5	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	none

<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class R5 and R6 - Invesco Oppenheimer International Diversified Fund		Class R5	Class R6
Management Fees		none	none
Distribution and/or Service (12b-1) Fees		none	none
Other Expenses	[1]	0.08%	0.03%
Acquired Fund Fees and Expenses	[1]	0.83%	0.83%
Total Annual Fund Operating Expenses	[2]	0.91%	0.86%

<b>Example.</b>

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 R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expense Example - Class R5 and R6 - Invesco Oppenheimer International Diversified Fund - USD ($)	1 Year	3 Years
Class R5	93	290
Class R6	90	278

<b>Portfolio Turnover.</b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

The Fund is a special type of mutual fund known as a “fund of funds” because it primarily invests in other mutual funds. Those funds are referred to as the “Underlying Funds.” The Underlying Funds mainly invest in foreign equity securities, which are securities of companies organized under the laws of a foreign country, or with a substantial portion of their operations, assets, revenue or profits from businesses, investments or sales outside the United States or securities traded primarily in foreign securities markets. Certain Underlying Funds may invest 100% of their assets in securities of foreign companies. Some Underlying Funds may invest in emerging or developing markets as well as in developed markets throughout the world. From time to time an Underlying Fund may place greater emphasis on investing in one or more particular industry or region. Under normal market conditions, the Fund will invest in shares of some or all of the following Invesco Oppenheimer global or international funds that were chosen based on the Adviser’s determination that they could provide capital appreciation:

• Invesco Oppenheimer Developing Markets Fund
• Invesco Oppenheimer International Growth Fund
• Invesco Oppenheimer International Small-Mid Company Fund
• Invesco Oppenheimer International Equity Fund

The Fund will typically invest in a minimum of three of the Underlying Funds and will not invest more than 50% of its net assets in any single Underlying Fund. The Adviser may change the weightings in the Underlying Funds at any time, without prior approval from or notice to shareholders. “Normal market conditions” are when securities markets and economic conditions are not unstable or adverse, in the judgment of the Adviser.

The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. In determining how much of the Fund’s assets to invest in an Underlying Fund, the Adviser will seek to diversify the Fund’s investments internationally and among different investment styles, larger and smaller market capitalizations and between developed and emerging markets. The Fund may also change its allocations based on the Adviser’s evaluation of economic factors that it believes are not reflected in particular markets in which one or more of the Underlying Funds invest or on current or anticipated changes in currency valuations. The Adviser monitors the Underlying Fund selections and in response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds, including using funds that may be created in the future, without prior approval from or notice to shareholders. Although the term “Underlying Funds” refers to Invesco Oppenheimer Developing Markets Fund, Invesco Oppenheimer International Growth Fund, Invesco Oppenheimer International Small-Mid Company Fund, and Invesco Oppenheimer International Equity Fund, for ease of reference, the Fund also uses the term “Underlying Funds” to refer to Underlying Funds that may be used in the future.

The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco family of funds. This will generally occur at times when the Fund is unable to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.

<b>Principal Risks of Investing in the Fund </b>

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 underlying funds, and therefore the Fund, are:

Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. The investment objective and principal investment strategies of each of the Underlying Funds are described in the section “More Information About the Underlying Funds” beginning on page 14 of this prospectus. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time.

Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative.

Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom.

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.93% and 0.88%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. Invesco Advisers has also contractually agreed to waive a portion of the Acquiring Fund’s management fee in an amount equal to the net management fee that Invesco Advisers earns on the Fund’s investments in certain affiliated funds, which will have the effect of reducing the Acquired Fund Fees and Expenses through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class R5 and R6 | Invesco Oppenheimer International Diversified Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summaries </b> - <b>INVESCO OPPENHEIMER INTERNATIONAL DIVERSIFIED FUND </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek capital appreciation.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses</b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover.</b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text]	rr_AcquiredFundFeesAndExpensesBasedOnEstimates	“Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is a special type of mutual fund known as a “fund of funds” because it primarily invests in other mutual funds. Those funds are referred to as the “Underlying Funds.” The Underlying Funds mainly invest in foreign equity securities, which are securities of companies organized under the laws of a foreign country, or with a substantial portion of their operations, assets, revenue or profits from businesses, investments or sales outside the United States or securities traded primarily in foreign securities markets. Certain Underlying Funds may invest 100% of their assets in securities of foreign companies. Some Underlying Funds may invest in emerging or developing markets as well as in developed markets throughout the world. From time to time an Underlying Fund may place greater emphasis on investing in one or more particular industry or region. Under normal market conditions, the Fund will invest in shares of some or all of the following Invesco Oppenheimer global or international funds that were chosen based on the Adviser’s determination that they could provide capital appreciation: Invesco Oppenheimer Developing Markets Fund Invesco Oppenheimer International Growth Fund Invesco Oppenheimer International Small-Mid Company Fund Invesco Oppenheimer International Equity Fund The Fund will typically invest in a minimum of three of the Underlying Funds and will not invest more than 50% of its net assets in any single Underlying Fund. The Adviser may change the weightings in the Underlying Funds at any time, without prior approval from or notice to shareholders. “Normal market conditions” are when securities markets and economic conditions are not unstable or adverse, in the judgment of the Adviser. The Adviser will monitor the markets and allocate assets among the Underlying Funds based on changing market or economic conditions and investment opportunities. In determining how much of the Fund’s assets to invest in an Underlying Fund, the Adviser will seek to diversify the Fund’s investments internationally and among different investment styles, larger and smaller market capitalizations and between developed and emerging markets. The Fund may also change its allocations based on the Adviser’s evaluation of economic factors that it believes are not reflected in particular markets in which one or more of the Underlying Funds invest or on current or anticipated changes in currency valuations. The Adviser monitors the Underlying Fund selections and in response to changing market or economic conditions, the Adviser may change any or all of the Underlying Funds, including using funds that may be created in the future, without prior approval from or notice to shareholders. Although the term “Underlying Funds” refers to Invesco Oppenheimer Developing Markets Fund, Invesco Oppenheimer International Growth Fund, Invesco Oppenheimer International Small-Mid Company Fund, and Invesco Oppenheimer International Equity Fund, for ease of reference, the Fund also uses the term “Underlying Funds” to refer to Underlying Funds that may be used in the future. The Fund may hold a portion of its assets in cash, money market securities or other similar, liquid investments, including in shares of money market mutual funds in the Invesco family of funds. This will generally occur at times when the Fund is unable to immediately invest funds received from purchases of Fund shares or from redemptions of other investments or to maintain liquidity.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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 underlying funds, and therefore the Fund, are: Risks of Investing in the Underlying Funds. Each of the Underlying Funds has its own investment risks, and those risks can affect the value of the Fund’s investments and therefore the value of the Fund’s shares. To the extent that the Fund invests more of its assets in one Underlying Fund than in another, it will have greater exposure to the risks of that Underlying Fund. The investment objective and principal investment strategies of each of the Underlying Funds are described in the section “More Information About the Underlying Funds” beginning on page 14 of this prospectus. There is no guarantee that the Fund or any Underlying Fund will achieve its investment objective. The Underlying Funds will each pursue their investment objectives and policies without the approval of the Fund. If an Underlying Fund were to change its investment objective or policies, the Fund may be forced to sell its shares of that Underlying Fund at a disadvantageous time. Allocation Risk. The Fund’s ability to achieve its investment objective depends largely upon selecting the best mix of Underlying Funds. There is the risk that portfolio manager evaluations and assumptions regarding the Underlying Funds’ prospects may be incorrect in view of actual market conditions. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight. Risks of Developing and Emerging Markets. Investments in developing and emerging markets are subject to all the risks associated with foreign investing, however, these risks may be magnified in developing and emerging markets. Developing or emerging market countries may have less well-developed securities markets and exchanges that may be substantially less liquid than those of more developed markets. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, and governments of developing or emerging market countries may also be more unstable than the governments of more developed countries. Such countries’ economies may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries also may be subject to social, political or economic instability. The value of developing or emerging market countries’ currencies may fluctuate more than the currencies of countries with more mature markets. Investments in developing or emerging market countries may be subject to greater risks of government restrictions, including confiscatory taxation, expropriation or 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. 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 securities of issuers in developing or emerging market countries may be considered speculative. Eurozone Investment Risks. Certain of the regions in which the Fund may invest, including the European Union (EU), currently experience significant financial difficulties. Following the global economic crisis that began in 2008, some of these countries have depended on, and may continue to be dependent on, the assistance from others such as the European Central Bank (ECB) or other governments or institutions, and failure to implement reforms as a condition of assistance could have a significant adverse effect on the value of investments in those and other European countries. In addition, countries that have adopted the euro are subject to fiscal and monetary controls that could limit the ability to implement their own economic policies, and could voluntarily abandon, or be forced out of, the euro. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable local currencies, and create more volatile and illiquid markets. Additionally, the United Kingdom’s intended departure from the EU, commonly known as “Brexit,” may have significant political and financial consequences for Eurozone markets, including greater market volatility and illiquidity, currency fluctuations, deterioration in economic activity, a decrease in business confidence and an increased likelihood of a recession in the United Kingdom. Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Affiliated Portfolio Risk. In managing the Fund, the Adviser will have authority to select and substitute Underlying Funds. The Adviser may be subject to potential conflicts of interest in selecting Underlying Funds because the fees paid to each by some Underlying Funds for its advisory services are higher than the fees paid by other Underlying Funds. However, the Adviser monitors the investment process to seek to identify, address and resolve any potential issues.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class R5 and R6 | Invesco Oppenheimer International Diversified 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.08%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.83%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.91%	[2]
1 Year	rr_ExpenseExampleYear01	$ 93
3 Years	rr_ExpenseExampleYear03	$ 290
Class R5 and R6 | Invesco Oppenheimer International Diversified 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	none
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.03%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.83%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.86%	[2]
1 Year	rr_ExpenseExampleYear01	$ 90
3 Years	rr_ExpenseExampleYear03	$ 278

[1] “Other Expenses” and “Acquired Fund Fees and Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding Acquired Fund Fees and Expenses and certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.93% and 0.88%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. Invesco Advisers has also contractually agreed to waive a portion of the Acquiring Fund’s management fee in an amount equal to the net management fee that Invesco Advisers earns on the Fund’s investments in certain affiliated funds, which will have the effect of reducing the Acquired Fund Fees and Expenses through at least May 28, 2021. During their terms, the fee waiver agreements cannot be terminated or amended to increase the expense limits or reduce the advisory fee waiver without approval of the Board of Trustees.

XML

Class R5 and R6 | Invesco Oppenheimer Main Street Small Cap Fund

<b>Fund Summaries </b> - <b>INVESCO OPPENHEIMER MAIN STREET SMALL CAP FUND</b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek capital appreciation.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class R5 and R6 - Invesco Oppenheimer Main Street Small Cap Fund	Class R5	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class R5 and R6 - Invesco Oppenheimer Main Street Small Cap Fund		Class R5	Class R6
Management Fees		0.72%	0.72%
Distribution and/or Service (12b-1) Fees		none	none
Other Expenses	[1]	0.11%	0.06%
Total Annual Fund Operating Expenses		0.83%	0.78%
Fee Waiver and/or Expense Reimbursement	[2]	0.01%	0.01%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.82%	0.77%

<b>Example.</b>

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 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 for the contractual period above 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 - Class R5 and R6 - Invesco Oppenheimer Main Street Small Cap Fund - USD ($)	1 Year	3 Years
Class R5	84	263
Class R6	79	247

<b>Portfolio Turnover. </b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

Under normal market conditions, the Fund will invest at least 80% of its net assets, including any borrowings for investment purposes, in securities of “small-cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers small-cap companies to be those having a market capitalization in the range of the Russell 2000^® Index. The capitalization range of that index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell 2000^® Index generally widens over time and it is reconstituted annually to preserve its market cap characteristics. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition.

Although the Fund mainly invests in U.S. companies, it can invest in securities issued by companies or governments in any country. The Fund primarily invests in common stock but may also invest in other types of securities that are consistent with its investment objective.

The portfolio is constructed and regularly monitored based upon several analytical tools, including quantitative investment models. Quantitative models are used as part of the idea generation process to rank securities within each sector to identify potential buy and sell candidates for further fundamental analysis. The Fund aims to maintain a broadly diversified portfolio across major economic sectors by applying investment parameters for both sector and position size.

In constructing the portfolio, the Fund seeks to limit exposure to so-called “top-down” or “macro” risks, such as overall stock market movements, economic cycles, and interest rate or currency fluctuations. Instead, the portfolio managers seek to add value by selecting individual securities with superior company-specific fundamental attributes or relative valuations that they expect to outperform their industry and sector peers. This is commonly referred to as a “bottom-up” approach to portfolio construction.

The portfolio managers consider stock rankings, benchmark weightings and capitalization outlooks in determining security weightings for individual issuers.

The portfolio managers might sell a security if, among other criteria, the price is approaching their price target, if the company’s competitive position has deteriorated or the company’s management has performed poorly, or if they have identified more attractive investment prospects.

<b>Principal Risks of Investing in the Fund </b>

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. The principal risks of investing in the Fund are:

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry.

Risks of Small-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. While smaller companies might offer greater opportunities for gain than larger companies, they also involve greater risk of loss. 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 it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. Since small-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. Small-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small-sized company, if it realizes any gain at all.

Risks of Quantitative Models. The portfolio managers use quantitative models as part of the idea generation process. Quantitative models are based upon many factors that measure individual securities relative to each other. Such models, which can be adversely affected by errors or imperfections in the factors or the data on which measurements are based, any technical issues with construction or implementation of the model, or a failure to perform as expected, may not identify securities that perform well in the future.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the SAI) of Class R5 and Class R6 shares to 0.82% and 0.77%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class R5 and R6 | Invesco Oppenheimer Main Street Small Cap Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summaries </b> - <b>INVESCO OPPENHEIMER MAIN STREET SMALL CAP FUND</b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek capital appreciation.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover. </b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” are based on estimated amounts for the current fiscal year.<br/><br/>
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 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 for the contractual period above 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:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the Fund will invest at least 80% of its net assets, including any borrowings for investment purposes, in securities of “small-cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers small-cap companies to be those having a market capitalization in the range of the Russell 2000® Index. The capitalization range of that index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell 2000® Index generally widens over time and it is reconstituted annually to preserve its market cap characteristics. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition. Although the Fund mainly invests in U.S. companies, it can invest in securities issued by companies or governments in any country. The Fund primarily invests in common stock but may also invest in other types of securities that are consistent with its investment objective. The portfolio is constructed and regularly monitored based upon several analytical tools, including quantitative investment models. Quantitative models are used as part of the idea generation process to rank securities within each sector to identify potential buy and sell candidates for further fundamental analysis. The Fund aims to maintain a broadly diversified portfolio across major economic sectors by applying investment parameters for both sector and position size. In constructing the portfolio, the Fund seeks to limit exposure to so-called “top-down” or “macro” risks, such as overall stock market movements, economic cycles, and interest rate or currency fluctuations. Instead, the portfolio managers seek to add value by selecting individual securities with superior company-specific fundamental attributes or relative valuations that they expect to outperform their industry and sector peers. This is commonly referred to as a “bottom-up” approach to portfolio construction. The portfolio managers consider stock rankings, benchmark weightings and capitalization outlooks in determining security weightings for individual issuers. The portfolio managers might sell a security if, among other criteria, the price is approaching their price target, if the company’s competitive position has deteriorated or the company’s management has performed poorly, or if they have identified more attractive investment prospects.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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. The principal risks of investing in the Fund are: Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry. Risks of Small-Cap Companies. Small-cap companies may be either established or newer companies, including “unseasoned” companies that have typically been in operation for less than three years. While smaller companies might offer greater opportunities for gain than larger companies, they also involve greater risk of loss. 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 it might be harder for the Fund to dispose of its holdings at an acceptable price when it wants to sell them. Small-cap companies may not have established markets for their products or services and may have fewer customers and product lines. They may have more limited access to financial resources and may not have the financial strength to sustain them through business downturns or adverse market conditions. Since small-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. Small-cap companies may have unseasoned management or less depth in management skill than larger, more established companies. They may be more reliant on the efforts of particular members of their management team and management changes may pose a greater risk to the success of the business. It may take a substantial period of time before the Fund realizes a gain on an investment in a small-sized company, if it realizes any gain at all. Risks of Quantitative Models. The portfolio managers use quantitative models as part of the idea generation process. Quantitative models are based upon many factors that measure individual securities relative to each other. Such models, which can be adversely affected by errors or imperfections in the factors or the data on which measurements are based, any technical issues with construction or implementation of the model, or a failure to perform as expected, may not identify securities that perform well in the future.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class R5 and R6 | Invesco Oppenheimer Main Street Small Cap 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.72%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.11%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.83%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.01%	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.82%
1 Year	rr_ExpenseExampleYear01	$ 84
3 Years	rr_ExpenseExampleYear03	$ 263
Class R5 and R6 | Invesco Oppenheimer Main Street Small Cap 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.72%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.06%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.78%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.01%	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.77%
1 Year	rr_ExpenseExampleYear01	$ 79
3 Years	rr_ExpenseExampleYear03	$ 247

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the SAI) of Class R5 and Class R6 shares to 0.82% and 0.77%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Class A, C, R and Y | Invesco Oppenheimer Main Street Mid Cap Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek capital appreciation.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class A, C, R and Y - Invesco Oppenheimer Main Street Mid Cap Fund	Class A		Class C	Class R	Class Y
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%		none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	[1]	1.00%	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class A, C, R and Y - Invesco Oppenheimer Main Street Mid Cap Fund		Class A	Class C	Class R	Class Y
Management Fees		0.63%	0.63%	0.63%	0.63%
Distribution and/or Service (12b-1) Fees		0.25%	1.00%	0.50%	none
Other Expenses	[1]	0.22%	0.22%	0.22%	0.22%
Total Annual Fund Operating Expenses		1.10%	1.85%	1.35%	0.85%
Fee Waiver and/or Expense Reimbursement	[2]	none	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		1.10%	1.84%	1.34%	0.84%

<b>Example. </b>

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 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 for the contractual period above 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 - Class A, C, R and Y - Invesco Oppenheimer Main Street Mid Cap Fund - USD ($)	1 Year	3 Years
Class A	656	880
Class C	287	580
Class R	136	426
Class Y	86	269

You would pay the following expenses if you did not redeem your shares:

Expense Example, No Redemption - Class A, C, R and Y - Invesco Oppenheimer Main Street Mid Cap Fund - USD ($)	1 Year	3 Years
Class A	656	880
Class C	187	580
Class R	136	426
Class Y	86	269

<b>Portfolio Turnover. </b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

Under normal market conditions, the Fund will invest at least 80% of its net assets, including any borrowings for investment purposes, in securities of “mid cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers mid cap companies to be those having a market capitalization in the range of the Russell Midcap^® Index, a measure of mid cap issuers. The capitalization range of the index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell Midcap^® Index generally widens over time and is reconstituted annually to preserve its mid cap characteristic. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition.

The portfolio managers use fundamental research to select securities for the Fund’s portfolio. While the process may change over time or vary in particular cases, in general the selection process currently uses a fundamental approach in analyzing issuers on factors such as a company’s financial performance, competitive strength and prospects, industry position, and business model and management strength. Industry outlook, market trends and general economic conditions may also be considered.

The Fund aims to maintain a broad diversification across all major economic sectors. The portfolio is constructed and regularly monitored based upon several analytical tools, including quantitative investment models. Quantitative models are used as part of the idea generation process to rank securities within each sector to identify potential buy and sell candidates for further fundamental analysis.

In constructing the portfolio, the Fund seeks to limit exposure to so-called “top-down” or “macro” risks, such as overall stock market movements, economic cycles, and interest rate or currency fluctuations. Instead, the portfolio managers seek to add value by selecting individual securities with superior company-specific fundamental attributes or relative valuations that they expect to outperform their industry and sector peers. This is commonly referred to as a “bottom-up” approach to portfolio construction.

The portfolio managers consider stock rankings, benchmark weightings and capitalization outlooks in determining security weightings for individual issuers. Although the Fund mainly invests in U.S. companies, it can invest in securities issued by companies or governments in any country. The Fund primarily invests in common stock but may also invest in other types of securities, such as units of master limited partnerships or other securities that are consistent with its investment objective.

The portfolio managers might sell a security if, among other criteria, the price is approaching their price target, if the company’s competitive position has deteriorated or the company’s management has performed poorly, or if they have identified more attractive investment prospects.

<b>Principal Risks of Investing in the Fund </b>

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. The principal risks of investing in the Fund are:

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Mid-Cap Companies. Mid-cap companies generally involve greater risk of loss than larger companies. The prices of securities issued by mid-sized companies may be more volatile and their securities may be less liquid and more difficult to sell than those of larger companies. They may have less established markets, fewer customers and product lines, less management depth and more limited access to financial resources. Mid-cap companies may not pay dividends for some time, if at all.

Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry.

Risks of Quantitative Models. The portfolio managers use quantitative models as part of the idea generation process. Quantitative models are based upon many factors that measure individual securities relative to each other. Such models, which can be adversely affected by errors or imperfections in the factors or the data on which measurements are based, any technical issues with construction or implementation of the model, or a failure to perform as expected, may not identify securities that perform well in the future.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 1.10%, 1.84%, 1.34% and 0.84%, respectively, of the Fund's average daily net assets (the "expense limits") through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class A, C, R and Y | Invesco Oppenheimer Main Street Mid Cap Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek capital appreciation.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. 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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover. </b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
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. 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).
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” are based on estimated amounts for the current fiscal year.<br/><br/>
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example. </b>
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 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 for the contractual period above 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 Narrative [Text Block]	rr_ExpenseExampleNoRedemptionNarrativeTextBlock	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the Fund will invest at least 80% of its net assets, including any borrowings for investment purposes, in securities of “mid cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers mid cap companies to be those having a market capitalization in the range of the Russell Midcap® Index, a measure of mid cap issuers. The capitalization range of the index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell Midcap® Index generally widens over time and is reconstituted annually to preserve its mid cap characteristic. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition. The portfolio managers use fundamental research to select securities for the Fund’s portfolio. While the process may change over time or vary in particular cases, in general the selection process currently uses a fundamental approach in analyzing issuers on factors such as a company’s financial performance, competitive strength and prospects, industry position, and business model and management strength. Industry outlook, market trends and general economic conditions may also be considered. The Fund aims to maintain a broad diversification across all major economic sectors. The portfolio is constructed and regularly monitored based upon several analytical tools, including quantitative investment models. Quantitative models are used as part of the idea generation process to rank securities within each sector to identify potential buy and sell candidates for further fundamental analysis. In constructing the portfolio, the Fund seeks to limit exposure to so-called “top-down” or “macro” risks, such as overall stock market movements, economic cycles, and interest rate or currency fluctuations. Instead, the portfolio managers seek to add value by selecting individual securities with superior company-specific fundamental attributes or relative valuations that they expect to outperform their industry and sector peers. This is commonly referred to as a “bottom-up” approach to portfolio construction. The portfolio managers consider stock rankings, benchmark weightings and capitalization outlooks in determining security weightings for individual issuers. Although the Fund mainly invests in U.S. companies, it can invest in securities issued by companies or governments in any country. The Fund primarily invests in common stock but may also invest in other types of securities, such as units of master limited partnerships or other securities that are consistent with its investment objective. The portfolio managers might sell a security if, among other criteria, the price is approaching their price target, if the company’s competitive position has deteriorated or the company’s management has performed poorly, or if they have identified more attractive investment prospects.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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. The principal risks of investing in the Fund are: Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Mid-Cap Companies. Mid-cap companies generally involve greater risk of loss than larger companies. The prices of securities issued by mid-sized companies may be more volatile and their securities may be less liquid and more difficult to sell than those of larger companies. They may have less established markets, fewer customers and product lines, less management depth and more limited access to financial resources. Mid-cap companies may not pay dividends for some time, if at all. Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry. Risks of Quantitative Models. The portfolio managers use quantitative models as part of the idea generation process. Quantitative models are based upon many factors that measure individual securities relative to each other. Such models, which can be adversely affected by errors or imperfections in the factors or the data on which measurements are based, any technical issues with construction or implementation of the model, or a failure to perform as expected, may not identify securities that perform well in the future.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class A, C, R and Y | Invesco Oppenheimer Main Street Mid Cap 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_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	0.63%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.22%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.10%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	none	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.10%
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).”
1 Year	rr_ExpenseExampleYear01	$ 656
3 Years	rr_ExpenseExampleYear03	880
1 Year	rr_ExpenseExampleNoRedemptionYear01	656
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 880
Class A, C, R and Y | Invesco Oppenheimer Main Street Mid Cap 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_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	0.63%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.22%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.85%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.01%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.84%
1 Year	rr_ExpenseExampleYear01	$ 287
3 Years	rr_ExpenseExampleYear03	580
1 Year	rr_ExpenseExampleNoRedemptionYear01	187
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 580
Class A, C, R and Y | Invesco Oppenheimer Main Street Mid Cap 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.63%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Other Expenses	rr_OtherExpensesOverAssets	0.22%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.35%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.01%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.34%
1 Year	rr_ExpenseExampleYear01	$ 136
3 Years	rr_ExpenseExampleYear03	426
1 Year	rr_ExpenseExampleNoRedemptionYear01	136
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 426
Class A, C, R and Y | Invesco Oppenheimer Main Street Mid Cap 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.63%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.22%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.85%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.01%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.84%
1 Year	rr_ExpenseExampleYear01	$ 86
3 Years	rr_ExpenseExampleYear03	269
1 Year	rr_ExpenseExampleNoRedemptionYear01	86
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 269

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[2] “Other Expenses” are based on estimated amounts for the current fiscal year.

[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 (excluding certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 1.10%, 1.84%, 1.34% and 0.84%, respectively, of the Fund's average daily net assets (the "expense limits") through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Class R5 and R6 | Invesco Oppenheimer Main Street Mid Cap Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek capital appreciation.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class R5 and R6 - Invesco Oppenheimer Main Street Mid Cap Fund	Class R5	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	none

<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class R5 and R6 - Invesco Oppenheimer Main Street Mid Cap Fund		Class R5	Class R6
Management Fees		0.63%	0.63%
Distribution and/or Service (12b-1) Fees		none	none
Other Expenses	[1]	0.08%	0.03%
Total Annual Fund Operating Expenses	[2]	0.71%	0.66%

<b>Example.<b>

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 R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expense Example - Class R5 and R6 - Invesco Oppenheimer Main Street Mid Cap Fund - USD ($)	1 Year	3 Years
Class R5	73	227
Class R6	67	211

<b>Portfolio Turnover.</b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

Under normal market conditions, the Fund will invest at least 80% of its net assets, including any borrowings for investment purposes, in securities of “mid cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers mid cap companies to be those having a market capitalization in the range of the Russell Midcap^® Index, a measure of mid cap issuers. The capitalization range of the index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell Midcap^® Index generally widens over time and is reconstituted annually to preserve its mid cap characteristic. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition.

The portfolio managers use fundamental research to select securities for the Fund’s portfolio. While the process may change over time or vary in particular cases, in general the selection process currently uses a fundamental approach in analyzing issuers on factors such as a company’s financial performance, competitive strength and prospects, industry position, and business model and management strength. Industry outlook, market trends and general economic conditions may also be considered.

The Fund aims to maintain a broad diversification across all major economic sectors. The portfolio is constructed and regularly monitored based upon several analytical tools, including quantitative investment models. Quantitative models are used as part of the idea generation process to rank securities within each sector to identify potential buy and sell candidates for further fundamental analysis.

In constructing the portfolio, the Fund seeks to limit exposure to so-called “top-down” or “macro” risks, such as overall stock market movements, economic cycles, and interest rate or currency fluctuations. Instead, the portfolio managers seek to add value by selecting individual securities with superior company-specific fundamental attributes or relative valuations that they expect to outperform their industry and sector peers. This is commonly referred to as a “bottom-up” approach to portfolio construction.

The portfolio managers consider stock rankings, benchmark weightings and capitalization outlooks in determining security weightings for individual issuers. Although the Fund mainly invests in U.S. companies, it can invest in securities issued by companies or governments in any country. The Fund primarily invests in common stock but may also invest in other types of securities, such as units of master limited partnerships or other securities that are consistent with its investment objective.

The portfolio managers might sell a security if, among other criteria, the price is approaching their price target, if the company’s competitive position has deteriorated or the company’s management has performed poorly, or if they have identified more attractive investment prospects.

<b>Principal Risks of Investing in the Fund </b>

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. The principal risks of investing in the Fund are:

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Mid-Cap Companies. Mid-cap companies generally involve greater risk of loss than larger companies. The prices of securities issued by mid-sized companies may be more volatile and their securities may be less liquid and more difficult to sell than those of larger companies. They may have less established markets, fewer customers and product lines, less management depth and more limited access to financial resources. Mid-cap companies may not pay dividends for some time, if at all.

Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry.

Risks of Quantitative Models. The portfolio managers use quantitative models as part of the idea generation process. Quantitative models are based upon many factors that measure individual securities relative to each other. Such models, which can be adversely affected by errors or imperfections in the factors or the data on which measurements are based, any technical issues with construction or implementation of the model, or a failure to perform as expected, may not identify securities that perform well in the future.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.72% and 0.67%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class R5 and R6 | Invesco Oppenheimer Main Street Mid Cap Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek capital appreciation.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses</b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover.</b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” are based on estimated amounts for the current fiscal year.<br/><br/>
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.<b>
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 R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the Fund will invest at least 80% of its net assets, including any borrowings for investment purposes, in securities of “mid cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers mid cap companies to be those having a market capitalization in the range of the Russell Midcap® Index, a measure of mid cap issuers. The capitalization range of the index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell Midcap® Index generally widens over time and is reconstituted annually to preserve its mid cap characteristic. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition. The portfolio managers use fundamental research to select securities for the Fund’s portfolio. While the process may change over time or vary in particular cases, in general the selection process currently uses a fundamental approach in analyzing issuers on factors such as a company’s financial performance, competitive strength and prospects, industry position, and business model and management strength. Industry outlook, market trends and general economic conditions may also be considered. The Fund aims to maintain a broad diversification across all major economic sectors. The portfolio is constructed and regularly monitored based upon several analytical tools, including quantitative investment models. Quantitative models are used as part of the idea generation process to rank securities within each sector to identify potential buy and sell candidates for further fundamental analysis. In constructing the portfolio, the Fund seeks to limit exposure to so-called “top-down” or “macro” risks, such as overall stock market movements, economic cycles, and interest rate or currency fluctuations. Instead, the portfolio managers seek to add value by selecting individual securities with superior company-specific fundamental attributes or relative valuations that they expect to outperform their industry and sector peers. This is commonly referred to as a “bottom-up” approach to portfolio construction. The portfolio managers consider stock rankings, benchmark weightings and capitalization outlooks in determining security weightings for individual issuers. Although the Fund mainly invests in U.S. companies, it can invest in securities issued by companies or governments in any country. The Fund primarily invests in common stock but may also invest in other types of securities, such as units of master limited partnerships or other securities that are consistent with its investment objective. The portfolio managers might sell a security if, among other criteria, the price is approaching their price target, if the company’s competitive position has deteriorated or the company’s management has performed poorly, or if they have identified more attractive investment prospects.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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. The principal risks of investing in the Fund are: Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Mid-Cap Companies. Mid-cap companies generally involve greater risk of loss than larger companies. The prices of securities issued by mid-sized companies may be more volatile and their securities may be less liquid and more difficult to sell than those of larger companies. They may have less established markets, fewer customers and product lines, less management depth and more limited access to financial resources. Mid-cap companies may not pay dividends for some time, if at all. Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry. Risks of Quantitative Models. The portfolio managers use quantitative models as part of the idea generation process. Quantitative models are based upon many factors that measure individual securities relative to each other. Such models, which can be adversely affected by errors or imperfections in the factors or the data on which measurements are based, any technical issues with construction or implementation of the model, or a failure to perform as expected, may not identify securities that perform well in the future.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class R5 and R6 | Invesco Oppenheimer Main Street Mid Cap 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.63%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.08%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.71%	[2]
1 Year	rr_ExpenseExampleYear01	$ 73
3 Years	rr_ExpenseExampleYear03	$ 227
Class R5 and R6 | Invesco Oppenheimer Main Street Mid Cap 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.63%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.03%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.66%	[2]
1 Year	rr_ExpenseExampleYear01	$ 67
3 Years	rr_ExpenseExampleYear03	$ 211

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.72% and 0.67%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

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Invesco Oppenheimer Master Event-Linked Bond Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek total return.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees</b> (fees paid directly from your investment)

Shareholder Fees	Invesco Oppenheimer Master Event-Linked Bond Fund Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none

<b>Annual Fund Operating Expenses</b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	Invesco Oppenheimer Master Event-Linked Bond Fund Class R6
Management Fees	0.40%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.05%	[1]
Total Annual Fund Operating Expenses	0.45%	[2]

<b>Example.</b>

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 R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expense Example	1 Year	3 Years
Invesco Oppenheimer Master Event-Linked Bond Fund | Class R6 | USD ($)	46	144

<b>Portfolio Turnover.</b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

Under normal circumstances, the Fund will invest at least 80% of its net assets (including borrowings for investment purposes) in event-linked bonds, and in derivatives and other instruments that have economic characteristics similar to such securities. The Fund may invest in event-linked bonds directly or indirectly through certain derivative instruments. Generally, event-linked bonds are fixed income securities for which the return of principal and payment of interest are contingent on the non-occurrence of a specified trigger event that leads to economic and/or human loss, such as an earthquake or hurricane. In most cases, the trigger event will not be deemed to have occurred unless the event happened in a particular geographic area and was of a certain magnitude (based on scientific readings) or caused a certain amount of actual or modeled loss. If the trigger event occurs prior to a bond’s maturity, the Fund may lose all or a portion of its principal and additional interest. If the trigger event does not occur, the Fund will recover its principal plus interest.

The Fund may invest in event-linked bonds issued by foreign sovereigns or by U.S. or foreign entities that are corporations, partnerships, trusts or other types of business entities. The Fund has no limit as to the maturity of event-linked bonds in which it invests or as to the market capitalization of the issuer. The Fund can invest without limit in event-linked bonds that are below investment grade (sometimes referred to as “high yield” or “junk” bonds). “Investment-grade” debt instruments are rated in one of the four highest rating categories by nationally recognized statistical rating organizations such as Moody’s or Standard & Poor’s (or in the case of unrated securities, determined by the Fund’s Adviser to be comparable to securities rated investment grade). The Fund may invest in unrated event-linked bonds, in which case the Fund’s Adviser internally assigns ratings to those instruments, after assessing their credit quality and other factors, in investment-grade or below-investment-grade categories similar to those of nationally recognized statistical rating organizations. There can be no assurance, nor is it intended, that the Adviser’s credit analysis is consistent or comparable with the credit analysis process used by a nationally recognized statistical rating organization. In addition, the Fund may invest in privately placed event-linked bonds (sometimes referred to as “cat bond lite” securities). Cat bond lite instruments are securities that transfer reinsurance risk into a bond format. However, unlike traditional event-linked bonds which are issued under Rule 144A of the Securities Act, cat bond lite securities are issued under Section 4(a)(2) of the Securities Act. Cat bond lite issuances under Section 4(a)(2) of the Securities Act are generally offered to a small number of targeted investors and in contrast to traditional event-linked bonds, require less documentation and disclosure. Further, unlike traditional event-linked bonds where modeling and risk analysis results are included as part of the offering, cat bond lite offerings often require investors to perform their own modeling and risk analysis.

When selecting event-linked bonds for investment, the Fund’s Adviser evaluates the evolving universe of event-linked bonds by performing its own analysis based on quantitative and qualitative research or by requesting other market participants to identify event-linked bonds that meet criteria determined by the Adviser. The Adviser may rely upon information and analysis obtained from brokers, dealers and ratings organizations, among other sources. The Adviser then uses quantitative and qualitative analysis to select appropriate event-linked bonds within each trigger event category, such as Japanese Typhoon and Pacific Northwest (U.S.) Earthquake. The Adviser’s qualitative analysis may consider various factors, such as trigger transparency, sponsor basis risk, call provisions, moral hazard, and correlation with other investments. The Adviser then utilizes quantitative methods to value the securities and to determine the desired allocation of event-linked bonds by trigger event category. The Adviser seeks to diversify the Fund’s portfolio of event-linked bonds by investing in bonds with different issuers and different types of trigger events. The Adviser will continue to monitor event-linked bonds in its portfolio for the duration of the Fund’s investment.

The Fund can invest in “derivative” instruments. A derivative is an instrument whose value depends on (or is derived from) the value of an underlying security, asset, interest rate, index or currency. Derivatives may allow the Fund to increase or decrease its exposure to certain markets or risks. Options, futures, swaps, “structured” notes and currency forward contracts are examples of derivative instruments the Fund can use. In addition to using derivatives to hedge investment risks, the Fund can use derivatives for investment purposes. Some derivative instruments held by the Fund may be illiquid.

<b>Principal Risks of Investing in the Fund </b>

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. The principal risks of investing in the Fund are:

Selection Risk. Poor investment selection by the Adviser will cause the Fund to underperform other funds having a similar investment objective and investment strategies. While the Adviser expects to have access to financial and other information about event-linked bonds, the amount of public information available with respect to event-linked bonds will generally be less extensive than what is available for exchange-listed or otherwise registered securities. In evaluating the rating of a bond and the creditworthiness of an issuer, the Adviser will consider, and may rely on, analyses performed by others. If those analyses or any model used to calculate the probability of a trigger event was not accurate or underestimated the likelihood of a trigger event, this may result in more frequent and greater than expected loss of principal and/or interest, which would adversely impact the Fund’s return.

Trigger Event Risk. Generally, event-linked bonds are fixed income securities for which the return of principal and payment of interest are contingent on the non-occurrence of a specified trigger event, such as an earthquake or hurricane. In most cases, the trigger event will not be deemed to have occurred unless the event happened in a particular geographic area and was of a certain magnitude (based on scientific readings) or caused a certain measurable amount of actual or modeled loss. If the trigger event occurs prior to a bond’s maturity, the Fund may lose all or a portion of its principal and additional interest. There can be no assurance that an event-linked bond in which the Fund invests will not experience either a partial or total loss of principal and/or additional interest. Certain event-linked bonds are multi-peril bonds in that one of a multiple set of trigger events could result in loss. The Fund may own multi-peril bonds and so a single trigger event may impact a multiple number of bonds.

Trigger Event Determination Risk. Event-linked bonds often provide for extensions of maturity that are mandatory, or optional at the discretion of the issuer, in order to process and audit loss claims in those cases where a trigger event has, or possibly has, occurred. The typical duration of mandatory and optional extensions of maturity for event-linked bonds currently is between three to six months. In certain circumstances, the extension may exceed two years. To the extent there are events that involve losses (or other event measurements) that are at, or near, the threshold for a trigger event, there may be some delay in the return of principal and/or interest until it is determined whether a trigger event has occurred. To the extent there is a dispute concerning the definition of the trigger event relative to the specific manifestation of a trigger event, there may be losses or delays in the payment of principal and/or interest.

Privately Issued Securities Risk. The Fund may invest in privately placed event-linked bonds (sometimes referred to as “cat bond lite” securities). Cat bond lite securities are typically issued under Section 4(a)(2) of the Securities Act to a targeted number of investors in contrast to traditional event-linked bonds which are issued under Rule 144A of the Securities Act and which can be offered and sold to a broader group of investors. Accordingly, cat bond lite securities are typically less liquid investments than traditional event-linked bonds and generally will be considered illiquid securities by the Fund. It may be difficult or impossible to value or sell promptly privately placed securities at an acceptable price. In addition, it may be difficult for the Fund to buy and sell significant amounts of such securities without an unfavorable impact on prevailing market prices. As a result, these securities may be difficult to dispose of at a fair price at the times when it is desirable to sell. The Fund’s investment in securities that are less actively traded or over time experience decreased trading volume may restrict its ability to take advantage of other market opportunities. This also may affect adversely the Fund’s ability to make distributions to the shareholder. In unusual market conditions, even normally liquid securities may be affected by a degree of liquidity risk.

Collateral Risk. The proceeds of an event-linked bond are typically placed in collateral until maturity or until an event triggers and losses are determined to be made. Issuers of event-linked bonds typically put the proceeds in a U.S. Treasury money market fund, which could possibly “break the buck”. Under this outcome, there is a remote possibility that the event-linked bond is priced under par but no peril event has even occurred.

Regulatory Risk. Issuers of event-linked bonds (and the sponsors of those issuers) may be subject to the laws and regulations of the jurisdictions in which they are domiciled and transact business. There can be no assurance that future changes in law or regulation in the applicable jurisdictions will not adversely affect the ability to issue or sponsor the issuance of event-linked bonds or the availability of these instruments for investment. Such changes could depress the market value of these securities or result in adverse tax consequences.

Limited Availability of Event-Linked Bonds. Investments in event-linked bonds may be limited. There is a risk that the Fund may not be able to meet its 80% threshold allocation to event-linked bonds. The limited availability of event-linked bonds may be due to a number of factors, including seasonal concentration of issuances, limited selection that meets the Fund’s investment objective and availability of event-linked bonds in the secondary market.

Issuer Prepayment Risk. Certain event-linked bonds allow the issuer the option to prepay or call the security prior to its maturity date. Typically, an issuer may exercise this right if the issuer is able to secure a more economically favorable reinsurance agreement when the prevailing rate of reinsurance declines, or if the cost of paying for the reinsurance agreement associated with the bond has been altered by external factors such as regulatory or tax changes. If an event-linked bond held by the Fund is prepaid or called prior to its maturity date, the Fund may be forced to reinvest the proceeds in other bonds at then-current yields, which may be lower than the yield of the bond that was prepaid or called.

Focused Investing Risk. Focusing on one type of investment, event-linked bonds, rather than a broad spectrum of investments, makes the Fund’s share price particularly sensitive to market, economic and natural and non-natural events that may affect this investment type. The Fund’s investment in event-linked bonds may be speculative and subject to greater price volatility than other types of investments.

Debt Securities. The Fund may invest in debt securities, including securities issued or guaranteed by the U.S. government, or its agencies and instrumentalities, or foreign sovereigns, and foreign and domestic corporate bonds, notes and debentures. Debt securities may be subject to the following risks:

• Interest Rate Risk. Interest rate risk is the risk that rising interest rates, or an expectation of rising interest rates in the near future, will cause the values of the Fund’s investments in debt securities to decline. The values of debt securities usually change when prevailing interest rates change. When interest rates rise, the values of outstanding debt securities generally fall, and those securities may sell at a discount from their face amount. When interest rates rise, the decrease in values of outstanding debt securities may not be offset by higher income from new investments. When interest rates fall, the values of already-issued debt securities generally rise. Additionally, when interest rates fall, the Fund’s investments in new securities may be at lower yields and may reduce the Fund’s income. The values of longer-term debt securities usually change more than the values of shorter-term debt securities when interest rates change; thus, interest rate risk is usually greater for securities with longer maturities or durations. “Zero-coupon” or “stripped” securities may be particularly sensitive to interest rate changes. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Interest rate changes may have different effects on the values of mortgage-related securities because of prepayment and extension risks.

• Duration Risk. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities are more likely to decline in price, and to a great extent, than shorter-duration debt securities, in a rising interest-rate environment. “Effective duration” attempts to measure the expected percentage change in the value of a bond or portfolio resulting from a change in prevailing interest rates. The change in the value of a bond or portfolio can be approximated by multiplying its duration by a change in interest rates. For example, if a bond has an effective duration of three years, a 1% increase in general interest rates would be expected to cause the bond’s value to decline about 3% while a 1% decrease in general interest rates would be expected to cause the bond’s value to increase 3%. The duration of a debt security may be equal to or shorter than the full maturity of a debt security.

• Credit Risk. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. U.S. government securities generally have lower credit risks than securities issued by private issuers or certain foreign governments. If an issuer fails to pay interest, the Fund’s income might be reduced, and if an issuer fails to repay principal, the value of the security might fall and the Fund could lose the amount of its investment in the security. The extent of this risk varies based on the terms of the particular security and the financial condition of the issuer. A downgrade in an issuer’s credit rating or other adverse news about an issuer, for any reason, can reduce the market value of that issuer’s securities.

Event-linked securities are subject to heightened credit risk. There is a risk that the issuer of an event-linked bond will fail to make interest payments, whether in whole or in part. The sponsoring entity may default on its obligation to make payments to the issuer or the issuer’s investment of principal may not perform as expected. Because most event-linked bond issuers currently are structured to be bankruptcy remote vehicles, it is unlikely that the Fund would lose its entire investment in an event-linked bond if the applicable trigger event never occurs. However, there can be no assurance that issuers of event-linked bonds in which the Fund may invest in the future will be structured in a similar manner or that a court would uphold the intended bankruptcy remote characterization of the structure. If an issuer of an event-linked bond that is issued in the future is structured in a different manner, it may be possible that the fund would lose its entire investment in an event-linked bond even though the applicable trigger event never occurs.

• Credit Spread Risk. Credit spread risk is the risk that credit spreads (i.e., the difference in yield between securities that is due to differences in their credit quality) may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Fund might have difficulty selling them promptly at an acceptable price.

• Extension Risk. Extension risk is the risk that, if interest rates rise rapidly, repayments of principal on certain debt securities may occur at a slower rate than expected, and the expected maturity of those securities could lengthen as a result. Securities that are subject to extension risk generally have a greater potential for loss when prevailing interest rates rise, which could cause their values to fall sharply. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value.

• Reinvestment Risk. Reinvestment risk is the risk that when interest rates fall, the Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds.

• Prepayment Risk. Certain fixed-income securities (in particular mortgage-related securities) are subject to the risk of unanticipated prepayment. Prepayment risk is the risk that, when interest rates fall, the issuer will redeem the security prior to the security’s expected maturity, or that borrowers will repay the loans that underlie these fixed-income securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to expected maturity. The Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Securities subject to prepayment risk generally offer less potential for gains when prevailing interest rates fall. If the Fund buys those securities at a premium, accelerated prepayments on those securities could cause the Fund to lose a portion of its principal investment. The impact of prepayments on the price of a security may be difficult to predict and may increase the security’s price volatility. Interest-only and principal-only securities are especially sensitive to interest rate changes, which can affect not only their prices but can also change the income flows and repayment assumptions about those investments.

• Event Risk. If an issuer of debt securities is the subject of a buyout, debt restructuring, merger or recapitalization that increases its debt load, it could interfere with its ability to make timely payments of interest and principal and cause the value of its debt securities to fall.

Fixed-Income Market Risks. The fixed-income securities market can be susceptible to unusual volatility and illiquidity. Volatility and illiquidity may be more pronounced in the case of lower-rated and unrated securities. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates), which are at or near historic lows in the U.S. and in other countries. During times of reduced market liquidity, the Fund may not be able to readily sell bonds at the prices at which they are carried on the Fund’s books. If the Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices. An unexpected increase in Fund redemption requests (including requests from shareholders who may own a significant percentage of the Fund’s shares), which may be triggered by market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Fund’s share price and increase the Fund’s liquidity risk, and/or Fund expenses. Similarly, the prices of the Fund’s holdings could be adversely affected if an investment account managed similarly to that of the Fund was to experience significant redemptions and that account were required to sell its holdings at an inopportune time. The liquidity of an issuer’s securities may decrease as a result of a decline in an issuer’s credit rating, the occurrence of an event that causes counterparties to avoid transacting with the issuer, or an increase in the issuer’s cash outflows, as well as other adverse market and economic developments. A lack of liquidity or other adverse credit market conditions may hamper the Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments.

Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). Under some circumstances, as was the case during the latter half of 2008 and early 2009, those concerns could cause reduced liquidity in certain debt securities markets.

Following the financial crisis, the Federal Reserve sought to stabilize the economy by keeping the federal funds rate at or near zero percent. The Federal Reserve has also purchased large quantities of securities issued or guaranteed by the U.S. government, its agencies or instrumentalities, pursuant to its monetary stimulus program known as “quantitative easing”. As the Federal Reserve has completed the tapering its securities purchases pursuant to quantitative easing, it has recently raised the interest rates on multiple occasions, and continues to consider future raises to the federal funds rate, there is a risk that interest rates may rise and cause fixed-income investors to move out of fixed-income securities, which may also increase redemptions in fixed-income mutual funds.

In addition, although the fixed-income securities markets have grown significantly in the last few decades, regulations and business practices have led some financial intermediaries to curtail their capacity to engage in trading (i.e., “market making”) activities for certain debt securities. As a result, dealer inventories of fixed-income securities, which provide an indication of the ability of financial intermediaries to make markets in fixed-income securities, are near historic lows relative to market size. Because market makers help stabilize the market through their financial intermediary services, further reductions in dealer inventories could have the potential to decrease liquidity and increase volatility in the fixed-income securities markets.

Credit Quality. The Fund may invest in securities that are rated or unrated. “Investment-grade” securities are those rated within the four highest rating categories by nationally recognized statistical rating organizations such as Moody’s Investors Service or S&P Global Ratings (S&P) (or, in the case of unrated securities, determined by the investment adviser to be comparable to securities rated investment-grade). “Below-investment-grade” securities are those that are rated below those categories, which are also referred to as “junk bonds.” While securities rated within the fourth highest category by S&P (meaning BBB+, BBB or BBB-) or by Moody’s (meaning Baa1, Baa2 or Baa3) are considered “investment-grade”, they have some speculative characteristics. If two or more nationally recognized statistical rating organizations have assigned different ratings to a security, the investment adviser uses the highest rating assigned.

Credit ratings evaluate the expectation that scheduled interest and principal payments will be made in a timely manner. They do not reflect any judgment of market risk. Ratings and market value may change from time to time, positively or negatively, to reflect new developments regarding the issuer. Rating organizations might not change their credit rating of an issuer in a timely manner to reflect events that could affect the issuer’s ability to make timely payments on its obligations. In selecting securities for its portfolio and evaluating their income potential and credit risk, the Fund does not rely solely on ratings by rating organizations but evaluates business, economic and other factors affecting issuers as well. Many factors affect an issuer’s ability to make timely payments, and the credit risk of a particular security may change over time. The investment adviser also may use its own research and analysis to assess those risks. If a bond is insured, it will usually be rated by the rating organizations based on the financial strength of the insurer. The rating categories are described in an Appendix to the Statement of Additional Information.

Unrated Securities. Because the Fund purchases securities that are not rated by any nationally recognized statistical rating organization, the investment adviser may internally assign ratings to those securities, after assessing their credit quality and other factors, in categories similar to those of nationally recognized statistical rating organizations. There can be no assurance, nor is it intended, that the investment adviser’s credit analysis process is consistent or comparable with the credit analysis process used by a nationally recognized statistical rating organization. Unrated securities are considered “investment-grade” or “below-investment-grade” if judged by the investment adviser to be comparable to rated investment-grade or below-investment-grade securities. The investment adviser’s rating does not constitute a guarantee of the credit quality. In addition, some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Fund might have difficulty selling them promptly at an acceptable price.

In evaluating the credit quality of a particular security, whether rated or unrated, the investment adviser will normally take into consideration a number of factors such as, if applicable, the financial resources of the issuer, the underlying source of funds for debt service on a security, the issuer’s sensitivity to economic conditions and trends, any operating history of the facility financed by the obligation, the degree of community support for the financed facility, the capabilities of the issuer’s management, and regulatory factors affecting the issuer or the particular facility.

A reduction in the rating of a security after the Fund buys it will not require the Fund to dispose of the security. However, the investment adviser will evaluate such downgraded securities to determine whether to keep them in the Fund’s portfolio.

Risks of Below-Investment-Grade Securities. Below-investment-grade securities (also referred to as “junk bonds”) generally have higher yields than investment-grade securities but also have higher risk profiles. Below-investment-grade securities are considered to be speculative and entail greater risk with respect to the ability of the issuer to timely repay principal and pay interest or dividends in accordance with the terms of the obligation and may have more credit risk than investment-grade rated securities, especially during times of weakening economic conditions or rising interest rates. These additional risks mean that the Fund may not receive the anticipated level of income from these securities, and the Fund’s net asset value may be affected by declines in the value of lower-grade securities. The major risks of below-investment-grade securities include:

• Prices of below-investment-grade securities may be subject to extreme price fluctuations, even under normal market conditions. Adverse changes in an issuer’s industry and general economic conditions may have a greater impact on the prices of below-investment-grade securities than on the prices of higher-rated fixed-income securities.

• Below-investment-grade securities may be issued by less creditworthy issuers and may be more likely to default than investment-grade securities. Issuers of below-investment-grade securities may have more outstanding debt relative to their assets than issuers of investment-grade securities. Issuers of below-investment-grade securities may be unable to meet their interest or principal payment obligations because of an economic downturn, specific issuer developments, or the unavailability of additional financing.

• In the event of an issuer’s bankruptcy, claims of other creditors may have priority over the claims of the holders of below-investment-grade securities.

• Below-investment-grade securities may be less liquid than investment grade securities, even under normal market conditions. There are fewer dealers in the below-investment-grade securities market and there may be significant differences in the prices quoted by the dealers. Because they are less liquid, judgment may play a greater role in valuing certain of the Fund’s securities than is the case with securities trading in a more liquid market.

• Below-investment-grade securities typically contain redemption provisions that permit the issuer of the securities containing such provisions to redeem the securities at its discretion. If the issuer redeems below-investment-grade securities, the Fund may have to invest the proceeds in securities with lower yields and may lose income.

• Below-investment-grade securities markets may be more susceptible to real or perceived adverse credit, economic, or market conditions than investment-grade securities.

Because the Fund can invest without limit in below-investment-grade securities, the Fund’s credit risks are greater than those of funds that buy only investment-grade securities. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk.

Risks of Foreign Investing. The Fund can invest without limit in foreign government and foreign corporate debt securities in both developed and emerging markets. Because the majority of event-linked bond issuers are domiciled outside the United States, the Fund will normally invest significant amounts of its assets in foreign securities. While foreign securities may offer special investment opportunities, they also have special risks that can reduce the Fund’s share prices and income.

• Foreign Market Risk. If there are fewer investors in a particular foreign market, securities traded in that market may be less liquid and more volatile than U.S. securities and more difficult to price. Foreign markets may also be subject to delays in the settlement of transactions and difficulties in pricing securities. If the Fund is delayed in settling a purchase or sale transaction, it may not receive any return on the invested assets or it may lose money if the value of the security declines. It may also be more expensive for the Fund to buy or sell securities in certain foreign markets than in the United States, which may increase the Fund’s expense ratio.

• Foreign Economy Risk. Foreign economies may be more vulnerable to political or economic changes than the U.S. economy. They may be more concentrated in particular industries or may rely on particular resources or trading partners to a greater extent. Certain foreign economies may be adversely affected by shortages of investment capital or by high rates of inflation. Changes in economic or monetary policy in the U.S. or abroad may also have a greater impact on the economies of certain foreign countries.

• Foreign Governmental and Regulatory Risks. Foreign companies may not be subject to the same accounting and disclosure requirements as U.S. companies. As a result there may be less accurate information available regarding a foreign company’s operations and financial condition. Foreign companies may be subject to capital controls, nationalization, or confiscatory taxes. There may be less government regulation of foreign issuers, exchanges and brokers than in the United States. Some countries also have restrictions that limit foreign ownership and may impose penalties for increases in the value of the Fund’s investment. The value of the Fund’s foreign investments may be affected if it experiences difficulties in enforcing legal judgments in foreign courts.

• Foreign Currency Risk. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of securities denominated in that foreign currency. If the U.S. dollar rises in value against a foreign currency, a security denominated in that currency will be worth less in U.S. dollars and if the U.S. dollar decreases in value against a foreign currency, a security denominated in that currency will be worth more in U.S. dollars. The dollar value of foreign investments may also be affected by exchange controls. Foreign currency exchange transactions may impose additional costs on the Fund. The Fund can also invest in derivative instruments linked to foreign currencies. The change in value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of derivatives linked to that foreign currency. The investment adviser’s selection of foreign currency denominated investments may not perform as expected. Currency derivative investments may be particularly volatile and subject to greater risks than other types of foreign-currency denominated investments.

• Foreign Custody Risk. There may be very limited regulatory oversight of certain foreign banks or securities depositories that hold foreign securities and foreign currency and the laws of certain countries may limit the ability to recover such assets if a foreign bank or depository or their agents goes bankrupt. There may also be an increased risk of loss of portfolio securities.

• Time Zone Arbitrage. If the Fund invests a significant amount of its assets in foreign securities, it may be exposed to “time-zone arbitrage” attempts by investors seeking to take advantage of differences in the values of foreign securities that might result from events that occur after the close of the foreign securities market on which a security is traded and before the close of the New York Stock Exchange that day, when the Fund’s net asset value is calculated. If such time zone arbitrage were successful, it might dilute the interests of other shareholders. However, the Fund’s use of “fair value pricing” under certain circumstances, to adjust the closing market prices of foreign securities to reflect what the investment adviser and the Board believe to be their fair value, may help deter those activities.

• Globalization Risks. The growing inter-relationship of global economies and financial markets has increased the effect of conditions in one country or region on issuers of securities in a different country or region. In particular, the adoption or prolongation of protectionist trade policies by one or more countries, changes in economic or monetary policy in the United States or abroad, or a slowdown in the U.S. economy, could lead to a decrease in demand for products and reduced flows of capital and income to companies in other countries.

• Regional Focus. At times, the Fund might increase the relative emphasis of its investments in a particular region of the world. Securities of issuers in a region might be affected by changes in economic conditions or by changes in government regulations, availability of basic resources or supplies, or other events that affect that region more than others. If the Fund has a greater emphasis on investments in a particular region, it may be subject to greater risks from adverse events that occur in that region than a fund that invests in a different region or that is more geographically diversified. Political, social or economic disruptions in the region may adversely affect the values of the Fund’s holdings.

The Fund seeks to actively manage foreign currency exposure both to help reduce risk and to seek to enhance return.

Risks of Developing and Emerging Markets. Investments in developing and emerging market countries are subject to all the risks associated with foreign investing; however, these risks may be magnified in developing and emerging markets. Investments in securities of issuers in developing or emerging market countries may be considered speculative. Additional information regarding certain of the risks associated with investing in developing and emerging markets is provided below.

• Less Developed Securities Markets. Developing or emerging market countries may have less well-developed securities markets and exchanges. Consequently they have lower trading volume than the securities markets of more developed countries and may be substantially less liquid than those of more developed countries.

• Transaction Settlement. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. As a result there could be subsequent declines in the value of the portfolio security, a decrease in the level of liquidity of the portfolio or, if there is a contract to sell the security, a possible liability to the purchaser.

• Price Volatility. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, which may lead to greater difficulties in pricing securities.

• Less Developed Governments and Economies. The governments of developing or emerging market countries may be more unstable than the governments of more developed countries. In addition, the economies of developing or emerging market countries may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries may be subject to social, political, or economic instability. Further, the value of the currency of a developing or emerging market country may fluctuate more than the currencies of countries with more mature markets.

• Government Restrictions. In certain developing or emerging market countries, government approval may be required for the repatriation of investment income, capital or the proceeds of sales of securities by foreign investors. Other government restrictions may include confiscatory taxation, expropriation or nationalization of company assets, restrictions on foreign ownership of local companies, protectionist measures, and practices such as share blocking.

• Privatization Programs. The governments in some developing or emerging market countries have been engaged in programs to sell all or part of their interests in government-owned or controlled enterprises. However, in certain developing or emerging market countries, the ability of foreign entities to participate in privatization programs may be limited by local law. There can be no assurance that privatization programs will be successful.

Risks of Derivative Investments. The Fund can use derivatives to seek increased income or to try to hedge investment and other risk. In general terms, a derivative investment is one whose value depends on (or is derived from) the value of an underlying asset, such as a bond, or non-asset reference, such as an interest rate or index.

Derivatives may be volatile and may involve significant risks. The underlying security, obligor or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. For some derivatives, it is possible to lose more than the amount invested in the derivative investment. In addition, some derivatives have the potential for unlimited loss, regardless of the size of the Fund’s initial investment. Certain derivative investments held by the Fund may be illiquid, making it difficult to close out an unfavorable position. Derivative transactions may require the payment of premiums and may increase portfolio turnover. Derivatives are subject to credit risk, since the Fund may lose money on a derivative investment if the issuer or counterparty fails to pay the amount due. As a result of these risks, the Fund could realize little or no income or lose money from the investment, or the use of a derivative for hedging might be unsuccessful.

In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives, including certain interest rate swaps and certain credit default swaps, are required to be executed on a regulated market and/or cleared through a clearinghouse, which may result in increased margin requirements and costs for the Fund. Entering into a derivative transaction that is cleared may entail further risks and costs, including the counterparty risk of the clearinghouse and the futures commission merchant through which the Fund accesses the clearinghouse.

Liquidity Risk. In certain situations, it may be difficult or impossible to value or sell promptly an investment at an acceptable price. This risk can be ongoing for any security that has a limited trading market or does not trade in large volumes. In addition, it may be difficult for the Fund to buy and sell significant amounts of such securities without an unfavorable impact on prevailing market prices. As a result, these securities may be difficult to dispose of at a fair price at the times when it is desirable to sell. The Fund’s investment in securities that are less actively traded or over time experience decreased trading volume may restrict its ability to take advantage of other market opportunities. This also may affect adversely the Fund’s ability to make distributions to the shareholder. In unusual market conditions, even normally liquid securities may be affected by a degree of liquidity risk.

Risks of Borrowing. Under the Investment Company Act, the Fund may not incur indebtedness unless immediately after it incurs debt it has “asset coverage” of at least 300% of the aggregate outstanding principal amount of the indebtedness. The Fund may be required to dispose of portfolio investments on unfavorable terms if market fluctuations reduce its asset coverage to less than 300%. Lenders to the Fund will have preference over the Fund’s shareholders as to payments of interest and repayments of principal on amounts that the Fund borrows and preference to the Fund’s assets in the event of its liquidation. Lending agreements may grant the lenders certain voting rights if the Fund defaults in the payment of interest or principal on the loan. Borrowing will cost the Fund interest expense and other fees. The cost of borrowing may reduce the Fund’s return.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the statement of additional information (SAI)) of Class R6 shares to 0.45% of the Fund’s average daily net assets (the “expense limit”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limit without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Invesco Oppenheimer Master Event-Linked Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek total return.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees</b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses</b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover.</b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” are based on estimated amounts for the current fiscal year.<br/><br/>
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 R6 shares. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal circumstances, the Fund will invest at least 80% of its net assets (including borrowings for investment purposes) in event-linked bonds, and in derivatives and other instruments that have economic characteristics similar to such securities. The Fund may invest in event-linked bonds directly or indirectly through certain derivative instruments. Generally, event-linked bonds are fixed income securities for which the return of principal and payment of interest are contingent on the non-occurrence of a specified trigger event that leads to economic and/or human loss, such as an earthquake or hurricane. In most cases, the trigger event will not be deemed to have occurred unless the event happened in a particular geographic area and was of a certain magnitude (based on scientific readings) or caused a certain amount of actual or modeled loss. If the trigger event occurs prior to a bond’s maturity, the Fund may lose all or a portion of its principal and additional interest. If the trigger event does not occur, the Fund will recover its principal plus interest. The Fund may invest in event-linked bonds issued by foreign sovereigns or by U.S. or foreign entities that are corporations, partnerships, trusts or other types of business entities. The Fund has no limit as to the maturity of event-linked bonds in which it invests or as to the market capitalization of the issuer. The Fund can invest without limit in event-linked bonds that are below investment grade (sometimes referred to as “high yield” or “junk” bonds). “Investment-grade” debt instruments are rated in one of the four highest rating categories by nationally recognized statistical rating organizations such as Moody’s or Standard & Poor’s (or in the case of unrated securities, determined by the Fund’s Adviser to be comparable to securities rated investment grade). The Fund may invest in unrated event-linked bonds, in which case the Fund’s Adviser internally assigns ratings to those instruments, after assessing their credit quality and other factors, in investment-grade or below-investment-grade categories similar to those of nationally recognized statistical rating organizations. There can be no assurance, nor is it intended, that the Adviser’s credit analysis is consistent or comparable with the credit analysis process used by a nationally recognized statistical rating organization. In addition, the Fund may invest in privately placed event-linked bonds (sometimes referred to as “cat bond lite” securities). Cat bond lite instruments are securities that transfer reinsurance risk into a bond format. However, unlike traditional event-linked bonds which are issued under Rule 144A of the Securities Act, cat bond lite securities are issued under Section 4(a)(2) of the Securities Act. Cat bond lite issuances under Section 4(a)(2) of the Securities Act are generally offered to a small number of targeted investors and in contrast to traditional event-linked bonds, require less documentation and disclosure. Further, unlike traditional event-linked bonds where modeling and risk analysis results are included as part of the offering, cat bond lite offerings often require investors to perform their own modeling and risk analysis. When selecting event-linked bonds for investment, the Fund’s Adviser evaluates the evolving universe of event-linked bonds by performing its own analysis based on quantitative and qualitative research or by requesting other market participants to identify event-linked bonds that meet criteria determined by the Adviser. The Adviser may rely upon information and analysis obtained from brokers, dealers and ratings organizations, among other sources. The Adviser then uses quantitative and qualitative analysis to select appropriate event-linked bonds within each trigger event category, such as Japanese Typhoon and Pacific Northwest (U.S.) Earthquake. The Adviser’s qualitative analysis may consider various factors, such as trigger transparency, sponsor basis risk, call provisions, moral hazard, and correlation with other investments. The Adviser then utilizes quantitative methods to value the securities and to determine the desired allocation of event-linked bonds by trigger event category. The Adviser seeks to diversify the Fund’s portfolio of event-linked bonds by investing in bonds with different issuers and different types of trigger events. The Adviser will continue to monitor event-linked bonds in its portfolio for the duration of the Fund’s investment. The Fund can invest in “derivative” instruments. A derivative is an instrument whose value depends on (or is derived from) the value of an underlying security, asset, interest rate, index or currency. Derivatives may allow the Fund to increase or decrease its exposure to certain markets or risks. Options, futures, swaps, “structured” notes and currency forward contracts are examples of derivative instruments the Fund can use. In addition to using derivatives to hedge investment risks, the Fund can use derivatives for investment purposes. Some derivative instruments held by the Fund may be illiquid.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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. The principal risks of investing in the Fund are: Selection Risk. Poor investment selection by the Adviser will cause the Fund to underperform other funds having a similar investment objective and investment strategies. While the Adviser expects to have access to financial and other information about event-linked bonds, the amount of public information available with respect to event-linked bonds will generally be less extensive than what is available for exchange-listed or otherwise registered securities. In evaluating the rating of a bond and the creditworthiness of an issuer, the Adviser will consider, and may rely on, analyses performed by others. If those analyses or any model used to calculate the probability of a trigger event was not accurate or underestimated the likelihood of a trigger event, this may result in more frequent and greater than expected loss of principal and/or interest, which would adversely impact the Fund’s return. Trigger Event Risk. Generally, event-linked bonds are fixed income securities for which the return of principal and payment of interest are contingent on the non-occurrence of a specified trigger event, such as an earthquake or hurricane. In most cases, the trigger event will not be deemed to have occurred unless the event happened in a particular geographic area and was of a certain magnitude (based on scientific readings) or caused a certain measurable amount of actual or modeled loss. If the trigger event occurs prior to a bond’s maturity, the Fund may lose all or a portion of its principal and additional interest. There can be no assurance that an event-linked bond in which the Fund invests will not experience either a partial or total loss of principal and/or additional interest. Certain event-linked bonds are multi-peril bonds in that one of a multiple set of trigger events could result in loss. The Fund may own multi-peril bonds and so a single trigger event may impact a multiple number of bonds. Trigger Event Determination Risk. Event-linked bonds often provide for extensions of maturity that are mandatory, or optional at the discretion of the issuer, in order to process and audit loss claims in those cases where a trigger event has, or possibly has, occurred. The typical duration of mandatory and optional extensions of maturity for event-linked bonds currently is between three to six months. In certain circumstances, the extension may exceed two years. To the extent there are events that involve losses (or other event measurements) that are at, or near, the threshold for a trigger event, there may be some delay in the return of principal and/or interest until it is determined whether a trigger event has occurred. To the extent there is a dispute concerning the definition of the trigger event relative to the specific manifestation of a trigger event, there may be losses or delays in the payment of principal and/or interest. Privately Issued Securities Risk. The Fund may invest in privately placed event-linked bonds (sometimes referred to as “cat bond lite” securities). Cat bond lite securities are typically issued under Section 4(a)(2) of the Securities Act to a targeted number of investors in contrast to traditional event-linked bonds which are issued under Rule 144A of the Securities Act and which can be offered and sold to a broader group of investors. Accordingly, cat bond lite securities are typically less liquid investments than traditional event-linked bonds and generally will be considered illiquid securities by the Fund. It may be difficult or impossible to value or sell promptly privately placed securities at an acceptable price. In addition, it may be difficult for the Fund to buy and sell significant amounts of such securities without an unfavorable impact on prevailing market prices. As a result, these securities may be difficult to dispose of at a fair price at the times when it is desirable to sell. The Fund’s investment in securities that are less actively traded or over time experience decreased trading volume may restrict its ability to take advantage of other market opportunities. This also may affect adversely the Fund’s ability to make distributions to the shareholder. In unusual market conditions, even normally liquid securities may be affected by a degree of liquidity risk. Collateral Risk. The proceeds of an event-linked bond are typically placed in collateral until maturity or until an event triggers and losses are determined to be made. Issuers of event-linked bonds typically put the proceeds in a U.S. Treasury money market fund, which could possibly “break the buck”. Under this outcome, there is a remote possibility that the event-linked bond is priced under par but no peril event has even occurred. Regulatory Risk. Issuers of event-linked bonds (and the sponsors of those issuers) may be subject to the laws and regulations of the jurisdictions in which they are domiciled and transact business. There can be no assurance that future changes in law or regulation in the applicable jurisdictions will not adversely affect the ability to issue or sponsor the issuance of event-linked bonds or the availability of these instruments for investment. Such changes could depress the market value of these securities or result in adverse tax consequences. Limited Availability of Event-Linked Bonds. Investments in event-linked bonds may be limited. There is a risk that the Fund may not be able to meet its 80% threshold allocation to event-linked bonds. The limited availability of event-linked bonds may be due to a number of factors, including seasonal concentration of issuances, limited selection that meets the Fund’s investment objective and availability of event-linked bonds in the secondary market. Issuer Prepayment Risk. Certain event-linked bonds allow the issuer the option to prepay or call the security prior to its maturity date. Typically, an issuer may exercise this right if the issuer is able to secure a more economically favorable reinsurance agreement when the prevailing rate of reinsurance declines, or if the cost of paying for the reinsurance agreement associated with the bond has been altered by external factors such as regulatory or tax changes. If an event-linked bond held by the Fund is prepaid or called prior to its maturity date, the Fund may be forced to reinvest the proceeds in other bonds at then-current yields, which may be lower than the yield of the bond that was prepaid or called. Focused Investing Risk. Focusing on one type of investment, event-linked bonds, rather than a broad spectrum of investments, makes the Fund’s share price particularly sensitive to market, economic and natural and non-natural events that may affect this investment type. The Fund’s investment in event-linked bonds may be speculative and subject to greater price volatility than other types of investments. Debt Securities. The Fund may invest in debt securities, including securities issued or guaranteed by the U.S. government, or its agencies and instrumentalities, or foreign sovereigns, and foreign and domestic corporate bonds, notes and debentures. Debt securities may be subject to the following risks: Interest Rate Risk. Interest rate risk is the risk that rising interest rates, or an expectation of rising interest rates in the near future, will cause the values of the Fund’s investments in debt securities to decline. The values of debt securities usually change when prevailing interest rates change. When interest rates rise, the values of outstanding debt securities generally fall, and those securities may sell at a discount from their face amount. When interest rates rise, the decrease in values of outstanding debt securities may not be offset by higher income from new investments. When interest rates fall, the values of already-issued debt securities generally rise. Additionally, when interest rates fall, the Fund’s investments in new securities may be at lower yields and may reduce the Fund’s income. The values of longer-term debt securities usually change more than the values of shorter-term debt securities when interest rates change; thus, interest rate risk is usually greater for securities with longer maturities or durations. “Zero-coupon” or “stripped” securities may be particularly sensitive to interest rate changes. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows. Interest rate changes may have different effects on the values of mortgage-related securities because of prepayment and extension risks. Duration Risk. Duration is a measure of the price sensitivity of a debt security or portfolio to interest rate changes. Duration risk is the risk that longer-duration debt securities are more likely to decline in price, and to a great extent, than shorter-duration debt securities, in a rising interest-rate environment. “Effective duration” attempts to measure the expected percentage change in the value of a bond or portfolio resulting from a change in prevailing interest rates. The change in the value of a bond or portfolio can be approximated by multiplying its duration by a change in interest rates. For example, if a bond has an effective duration of three years, a 1% increase in general interest rates would be expected to cause the bond’s value to decline about 3% while a 1% decrease in general interest rates would be expected to cause the bond’s value to increase 3%. The duration of a debt security may be equal to or shorter than the full maturity of a debt security. Credit Risk. Credit risk is the risk that the issuer of a security might not make interest and principal payments on the security as they become due. U.S. government securities generally have lower credit risks than securities issued by private issuers or certain foreign governments. If an issuer fails to pay interest, the Fund’s income might be reduced, and if an issuer fails to repay principal, the value of the security might fall and the Fund could lose the amount of its investment in the security. The extent of this risk varies based on the terms of the particular security and the financial condition of the issuer. A downgrade in an issuer’s credit rating or other adverse news about an issuer, for any reason, can reduce the market value of that issuer’s securities. Event-linked securities are subject to heightened credit risk. There is a risk that the issuer of an event-linked bond will fail to make interest payments, whether in whole or in part. The sponsoring entity may default on its obligation to make payments to the issuer or the issuer’s investment of principal may not perform as expected. Because most event-linked bond issuers currently are structured to be bankruptcy remote vehicles, it is unlikely that the Fund would lose its entire investment in an event-linked bond if the applicable trigger event never occurs. However, there can be no assurance that issuers of event-linked bonds in which the Fund may invest in the future will be structured in a similar manner or that a court would uphold the intended bankruptcy remote characterization of the structure. If an issuer of an event-linked bond that is issued in the future is structured in a different manner, it may be possible that the fund would lose its entire investment in an event-linked bond even though the applicable trigger event never occurs. Credit Spread Risk. Credit spread risk is the risk that credit spreads (i.e., the difference in yield between securities that is due to differences in their credit quality) may increase when the market expects lower-grade bonds to default more frequently. Widening credit spreads may quickly reduce the market values of the Fund’s lower-rated and unrated securities. Some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Fund might have difficulty selling them promptly at an acceptable price. Extension Risk. Extension risk is the risk that, if interest rates rise rapidly, repayments of principal on certain debt securities may occur at a slower rate than expected, and the expected maturity of those securities could lengthen as a result. Securities that are subject to extension risk generally have a greater potential for loss when prevailing interest rates rise, which could cause their values to fall sharply. Extension risk is particularly prevalent for a callable security where an increase in interest rates could result in the issuer of that security choosing not to redeem the security as anticipated on the security’s call date. Such a decision by the issuer could have the effect of lengthening the debt security’s expected maturity, making it more vulnerable to interest rate risk and reducing its market value. Reinvestment Risk. Reinvestment risk is the risk that when interest rates fall, the Fund may be required to reinvest the proceeds from a security’s sale or redemption at a lower interest rate. Callable bonds are generally subject to greater reinvestment risk than non-callable bonds. Prepayment Risk. Certain fixed-income securities (in particular mortgage-related securities) are subject to the risk of unanticipated prepayment. Prepayment risk is the risk that, when interest rates fall, the issuer will redeem the security prior to the security’s expected maturity, or that borrowers will repay the loans that underlie these fixed-income securities more quickly than expected, thereby causing the issuer of the security to repay the principal prior to expected maturity. The Fund may need to reinvest the proceeds at a lower interest rate, reducing its income. Securities subject to prepayment risk generally offer less potential for gains when prevailing interest rates fall. If the Fund buys those securities at a premium, accelerated prepayments on those securities could cause the Fund to lose a portion of its principal investment. The impact of prepayments on the price of a security may be difficult to predict and may increase the security’s price volatility. Interest-only and principal-only securities are especially sensitive to interest rate changes, which can affect not only their prices but can also change the income flows and repayment assumptions about those investments. Event Risk. If an issuer of debt securities is the subject of a buyout, debt restructuring, merger or recapitalization that increases its debt load, it could interfere with its ability to make timely payments of interest and principal and cause the value of its debt securities to fall. Fixed-Income Market Risks. The fixed-income securities market can be susceptible to unusual volatility and illiquidity. Volatility and illiquidity may be more pronounced in the case of lower-rated and unrated securities. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates), which are at or near historic lows in the U.S. and in other countries. During times of reduced market liquidity, the Fund may not be able to readily sell bonds at the prices at which they are carried on the Fund’s books. If the Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices. An unexpected increase in Fund redemption requests (including requests from shareholders who may own a significant percentage of the Fund’s shares), which may be triggered by market turmoil or an increase in interest rates, as well as other adverse market and economic developments, could cause the Fund to sell its holdings at a loss or at undesirable prices and adversely affect the Fund’s share price and increase the Fund’s liquidity risk, and/or Fund expenses. Similarly, the prices of the Fund’s holdings could be adversely affected if an investment account managed similarly to that of the Fund was to experience significant redemptions and that account were required to sell its holdings at an inopportune time. The liquidity of an issuer’s securities may decrease as a result of a decline in an issuer’s credit rating, the occurrence of an event that causes counterparties to avoid transacting with the issuer, or an increase in the issuer’s cash outflows, as well as other adverse market and economic developments. A lack of liquidity or other adverse credit market conditions may hamper the Fund’s ability to sell the debt securities in which it invests or to find and purchase suitable debt instruments. Economic and other market developments can adversely affect fixed-income securities markets in the United States, Europe and elsewhere. At times, participants in debt securities markets may develop concerns about the ability of certain issuers of debt securities to make timely principal and interest payments, or they may develop concerns about the ability of financial institutions that make markets in certain debt securities to facilitate an orderly market. Those concerns may impact the market price or value of those debt securities and may cause increased volatility in those debt securities or debt securities markets, reducing the willingness of some lenders to extend credit, and making it more difficult for borrowers to obtain financing on attractive terms (or at all). Under some circumstances, as was the case during the latter half of 2008 and early 2009, those concerns could cause reduced liquidity in certain debt securities markets. Following the financial crisis, the Federal Reserve sought to stabilize the economy by keeping the federal funds rate at or near zero percent. The Federal Reserve has also purchased large quantities of securities issued or guaranteed by the U.S. government, its agencies or instrumentalities, pursuant to its monetary stimulus program known as “quantitative easing”. As the Federal Reserve has completed the tapering its securities purchases pursuant to quantitative easing, it has recently raised the interest rates on multiple occasions, and continues to consider future raises to the federal funds rate, there is a risk that interest rates may rise and cause fixed-income investors to move out of fixed-income securities, which may also increase redemptions in fixed-income mutual funds. In addition, although the fixed-income securities markets have grown significantly in the last few decades, regulations and business practices have led some financial intermediaries to curtail their capacity to engage in trading (i.e., “market making”) activities for certain debt securities. As a result, dealer inventories of fixed-income securities, which provide an indication of the ability of financial intermediaries to make markets in fixed-income securities, are near historic lows relative to market size. Because market makers help stabilize the market through their financial intermediary services, further reductions in dealer inventories could have the potential to decrease liquidity and increase volatility in the fixed-income securities markets. Credit Quality. The Fund may invest in securities that are rated or unrated. “Investment-grade” securities are those rated within the four highest rating categories by nationally recognized statistical rating organizations such as Moody’s Investors Service or S&P Global Ratings (S&P) (or, in the case of unrated securities, determined by the investment adviser to be comparable to securities rated investment-grade). “Below-investment-grade” securities are those that are rated below those categories, which are also referred to as “junk bonds.” While securities rated within the fourth highest category by S&P (meaning BBB+, BBB or BBB-) or by Moody’s (meaning Baa1, Baa2 or Baa3) are considered “investment-grade”, they have some speculative characteristics. If two or more nationally recognized statistical rating organizations have assigned different ratings to a security, the investment adviser uses the highest rating assigned. Credit ratings evaluate the expectation that scheduled interest and principal payments will be made in a timely manner. They do not reflect any judgment of market risk. Ratings and market value may change from time to time, positively or negatively, to reflect new developments regarding the issuer. Rating organizations might not change their credit rating of an issuer in a timely manner to reflect events that could affect the issuer’s ability to make timely payments on its obligations. In selecting securities for its portfolio and evaluating their income potential and credit risk, the Fund does not rely solely on ratings by rating organizations but evaluates business, economic and other factors affecting issuers as well. Many factors affect an issuer’s ability to make timely payments, and the credit risk of a particular security may change over time. The investment adviser also may use its own research and analysis to assess those risks. If a bond is insured, it will usually be rated by the rating organizations based on the financial strength of the insurer. The rating categories are described in an Appendix to the Statement of Additional Information. Unrated Securities. Because the Fund purchases securities that are not rated by any nationally recognized statistical rating organization, the investment adviser may internally assign ratings to those securities, after assessing their credit quality and other factors, in categories similar to those of nationally recognized statistical rating organizations. There can be no assurance, nor is it intended, that the investment adviser’s credit analysis process is consistent or comparable with the credit analysis process used by a nationally recognized statistical rating organization. Unrated securities are considered “investment-grade” or “below-investment-grade” if judged by the investment adviser to be comparable to rated investment-grade or below-investment-grade securities. The investment adviser’s rating does not constitute a guarantee of the credit quality. In addition, some unrated securities may not have an active trading market or may trade less actively than rated securities, which means that the Fund might have difficulty selling them promptly at an acceptable price. In evaluating the credit quality of a particular security, whether rated or unrated, the investment adviser will normally take into consideration a number of factors such as, if applicable, the financial resources of the issuer, the underlying source of funds for debt service on a security, the issuer’s sensitivity to economic conditions and trends, any operating history of the facility financed by the obligation, the degree of community support for the financed facility, the capabilities of the issuer’s management, and regulatory factors affecting the issuer or the particular facility. A reduction in the rating of a security after the Fund buys it will not require the Fund to dispose of the security. However, the investment adviser will evaluate such downgraded securities to determine whether to keep them in the Fund’s portfolio. Risks of Below-Investment-Grade Securities. Below-investment-grade securities (also referred to as “junk bonds”) generally have higher yields than investment-grade securities but also have higher risk profiles. Below-investment-grade securities are considered to be speculative and entail greater risk with respect to the ability of the issuer to timely repay principal and pay interest or dividends in accordance with the terms of the obligation and may have more credit risk than investment-grade rated securities, especially during times of weakening economic conditions or rising interest rates. These additional risks mean that the Fund may not receive the anticipated level of income from these securities, and the Fund’s net asset value may be affected by declines in the value of lower-grade securities. The major risks of below-investment-grade securities include: Prices of below-investment-grade securities may be subject to extreme price fluctuations, even under normal market conditions. Adverse changes in an issuer’s industry and general economic conditions may have a greater impact on the prices of below-investment-grade securities than on the prices of higher-rated fixed-income securities. Below-investment-grade securities may be issued by less creditworthy issuers and may be more likely to default than investment-grade securities. Issuers of below-investment-grade securities may have more outstanding debt relative to their assets than issuers of investment-grade securities. Issuers of below-investment-grade securities may be unable to meet their interest or principal payment obligations because of an economic downturn, specific issuer developments, or the unavailability of additional financing. In the event of an issuer’s bankruptcy, claims of other creditors may have priority over the claims of the holders of below-investment-grade securities. Below-investment-grade securities may be less liquid than investment grade securities, even under normal market conditions. There are fewer dealers in the below-investment-grade securities market and there may be significant differences in the prices quoted by the dealers. Because they are less liquid, judgment may play a greater role in valuing certain of the Fund’s securities than is the case with securities trading in a more liquid market. Below-investment-grade securities typically contain redemption provisions that permit the issuer of the securities containing such provisions to redeem the securities at its discretion. If the issuer redeems below-investment-grade securities, the Fund may have to invest the proceeds in securities with lower yields and may lose income. Below-investment-grade securities markets may be more susceptible to real or perceived adverse credit, economic, or market conditions than investment-grade securities. Because the Fund can invest without limit in below-investment-grade securities, the Fund’s credit risks are greater than those of funds that buy only investment-grade securities. Credit rating downgrades of a single issuer or related similar issuers whose securities the Fund holds in significant amounts could substantially and unexpectedly increase the Fund’s exposure to below-investment-grade securities and the risks associated with them, especially liquidity and default risk. Risks of Foreign Investing. The Fund can invest without limit in foreign government and foreign corporate debt securities in both developed and emerging markets. Because the majority of event-linked bond issuers are domiciled outside the United States, the Fund will normally invest significant amounts of its assets in foreign securities. While foreign securities may offer special investment opportunities, they also have special risks that can reduce the Fund’s share prices and income. Foreign Market Risk. If there are fewer investors in a particular foreign market, securities traded in that market may be less liquid and more volatile than U.S. securities and more difficult to price. Foreign markets may also be subject to delays in the settlement of transactions and difficulties in pricing securities. If the Fund is delayed in settling a purchase or sale transaction, it may not receive any return on the invested assets or it may lose money if the value of the security declines. It may also be more expensive for the Fund to buy or sell securities in certain foreign markets than in the United States, which may increase the Fund’s expense ratio. Foreign Economy Risk. Foreign economies may be more vulnerable to political or economic changes than the U.S. economy. They may be more concentrated in particular industries or may rely on particular resources or trading partners to a greater extent. Certain foreign economies may be adversely affected by shortages of investment capital or by high rates of inflation. Changes in economic or monetary policy in the U.S. or abroad may also have a greater impact on the economies of certain foreign countries. Foreign Governmental and Regulatory Risks. Foreign companies may not be subject to the same accounting and disclosure requirements as U.S. companies. As a result there may be less accurate information available regarding a foreign company’s operations and financial condition. Foreign companies may be subject to capital controls, nationalization, or confiscatory taxes. There may be less government regulation of foreign issuers, exchanges and brokers than in the United States. Some countries also have restrictions that limit foreign ownership and may impose penalties for increases in the value of the Fund’s investment. The value of the Fund’s foreign investments may be affected if it experiences difficulties in enforcing legal judgments in foreign courts. Foreign Currency Risk. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of securities denominated in that foreign currency. If the U.S. dollar rises in value against a foreign currency, a security denominated in that currency will be worth less in U.S. dollars and if the U.S. dollar decreases in value against a foreign currency, a security denominated in that currency will be worth more in U.S. dollars. The dollar value of foreign investments may also be affected by exchange controls. Foreign currency exchange transactions may impose additional costs on the Fund. The Fund can also invest in derivative instruments linked to foreign currencies. The change in value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of derivatives linked to that foreign currency. The investment adviser’s selection of foreign currency denominated investments may not perform as expected. Currency derivative investments may be particularly volatile and subject to greater risks than other types of foreign-currency denominated investments. Foreign Custody Risk. There may be very limited regulatory oversight of certain foreign banks or securities depositories that hold foreign securities and foreign currency and the laws of certain countries may limit the ability to recover such assets if a foreign bank or depository or their agents goes bankrupt. There may also be an increased risk of loss of portfolio securities. Time Zone Arbitrage. If the Fund invests a significant amount of its assets in foreign securities, it may be exposed to “time-zone arbitrage” attempts by investors seeking to take advantage of differences in the values of foreign securities that might result from events that occur after the close of the foreign securities market on which a security is traded and before the close of the New York Stock Exchange that day, when the Fund’s net asset value is calculated. If such time zone arbitrage were successful, it might dilute the interests of other shareholders. However, the Fund’s use of “fair value pricing” under certain circumstances, to adjust the closing market prices of foreign securities to reflect what the investment adviser and the Board believe to be their fair value, may help deter those activities. Globalization Risks. The growing inter-relationship of global economies and financial markets has increased the effect of conditions in one country or region on issuers of securities in a different country or region. In particular, the adoption or prolongation of protectionist trade policies by one or more countries, changes in economic or monetary policy in the United States or abroad, or a slowdown in the U.S. economy, could lead to a decrease in demand for products and reduced flows of capital and income to companies in other countries. Regional Focus. At times, the Fund might increase the relative emphasis of its investments in a particular region of the world. Securities of issuers in a region might be affected by changes in economic conditions or by changes in government regulations, availability of basic resources or supplies, or other events that affect that region more than others. If the Fund has a greater emphasis on investments in a particular region, it may be subject to greater risks from adverse events that occur in that region than a fund that invests in a different region or that is more geographically diversified. Political, social or economic disruptions in the region may adversely affect the values of the Fund’s holdings. The Fund seeks to actively manage foreign currency exposure both to help reduce risk and to seek to enhance return. Risks of Developing and Emerging Markets. Investments in developing and emerging market countries are subject to all the risks associated with foreign investing; however, these risks may be magnified in developing and emerging markets. Investments in securities of issuers in developing or emerging market countries may be considered speculative. Additional information regarding certain of the risks associated with investing in developing and emerging markets is provided below. Less Developed Securities Markets. Developing or emerging market countries may have less well-developed securities markets and exchanges. Consequently they have lower trading volume than the securities markets of more developed countries and may be substantially less liquid than those of more developed countries. Transaction Settlement. Settlement procedures in developing or emerging markets may differ from those of more established securities markets, and settlement delays may result in the inability to invest assets or to dispose of portfolio securities in a timely manner. As a result there could be subsequent declines in the value of the portfolio security, a decrease in the level of liquidity of the portfolio or, if there is a contract to sell the security, a possible liability to the purchaser. Price Volatility. Securities prices in developing or emerging markets may be significantly more volatile than is the case in more developed nations of the world, which may lead to greater difficulties in pricing securities. Less Developed Governments and Economies. The governments of developing or emerging market countries may be more unstable than the governments of more developed countries. In addition, the economies of developing or emerging market countries may be more dependent on relatively few industries or investors that may be highly vulnerable to local and global changes. Developing or emerging market countries may be subject to social, political, or economic instability. Further, the value of the currency of a developing or emerging market country may fluctuate more than the currencies of countries with more mature markets. Government Restrictions. In certain developing or emerging market countries, government approval may be required for the repatriation of investment income, capital or the proceeds of sales of securities by foreign investors. Other government restrictions may include confiscatory taxation, expropriation or nationalization of company assets, restrictions on foreign ownership of local companies, protectionist measures, and practices such as share blocking. Privatization Programs. The governments in some developing or emerging market countries have been engaged in programs to sell all or part of their interests in government-owned or controlled enterprises. However, in certain developing or emerging market countries, the ability of foreign entities to participate in privatization programs may be limited by local law. There can be no assurance that privatization programs will be successful. Risks of Derivative Investments. The Fund can use derivatives to seek increased income or to try to hedge investment and other risk. In general terms, a derivative investment is one whose value depends on (or is derived from) the value of an underlying asset, such as a bond, or non-asset reference, such as an interest rate or index. Derivatives may be volatile and may involve significant risks. The underlying security, obligor or other instrument on which a derivative is based, or the derivative itself, may not perform as expected. For some derivatives, it is possible to lose more than the amount invested in the derivative investment. In addition, some derivatives have the potential for unlimited loss, regardless of the size of the Fund’s initial investment. Certain derivative investments held by the Fund may be illiquid, making it difficult to close out an unfavorable position. Derivative transactions may require the payment of premiums and may increase portfolio turnover. Derivatives are subject to credit risk, since the Fund may lose money on a derivative investment if the issuer or counterparty fails to pay the amount due. As a result of these risks, the Fund could realize little or no income or lose money from the investment, or the use of a derivative for hedging might be unsuccessful. In addition, pursuant to rules implemented under financial reform legislation, certain over-the-counter derivatives, including certain interest rate swaps and certain credit default swaps, are required to be executed on a regulated market and/or cleared through a clearinghouse, which may result in increased margin requirements and costs for the Fund. Entering into a derivative transaction that is cleared may entail further risks and costs, including the counterparty risk of the clearinghouse and the futures commission merchant through which the Fund accesses the clearinghouse. Liquidity Risk. In certain situations, it may be difficult or impossible to value or sell promptly an investment at an acceptable price. This risk can be ongoing for any security that has a limited trading market or does not trade in large volumes. In addition, it may be difficult for the Fund to buy and sell significant amounts of such securities without an unfavorable impact on prevailing market prices. As a result, these securities may be difficult to dispose of at a fair price at the times when it is desirable to sell. The Fund’s investment in securities that are less actively traded or over time experience decreased trading volume may restrict its ability to take advantage of other market opportunities. This also may affect adversely the Fund’s ability to make distributions to the shareholder. In unusual market conditions, even normally liquid securities may be affected by a degree of liquidity risk. Risks of Borrowing. Under the Investment Company Act, the Fund may not incur indebtedness unless immediately after it incurs debt it has “asset coverage” of at least 300% of the aggregate outstanding principal amount of the indebtedness. The Fund may be required to dispose of portfolio investments on unfavorable terms if market fluctuations reduce its asset coverage to less than 300%. Lenders to the Fund will have preference over the Fund’s shareholders as to payments of interest and repayments of principal on amounts that the Fund borrows and preference to the Fund’s assets in the event of its liquidation. Lending agreements may grant the lenders certain voting rights if the Fund defaults in the payment of interest or principal on the loan. Borrowing will cost the Fund interest expense and other fees. The cost of borrowing may reduce the Fund’s return.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Invesco Oppenheimer Master Event-Linked Bond 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.40%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.05%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.45%	[2]
1 Year	rr_ExpenseExampleYear01	$ 46
3 Years	rr_ExpenseExampleYear03	$ 144

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the statement of additional information (SAI)) of Class R6 shares to 0.45% of the Fund’s average daily net assets (the “expense limit”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limit without approval of the Board of Trustees.

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Class A, C, R and Y | Invesco Oppenheimer Mid Cap Value Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek capital appreciation.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees </b> (fees paid directly from your investment)

Shareholder Fees - Class A, C, R and Y - Invesco Oppenheimer Mid Cap Value Fund	Class A		Class C	Class R	Class Y
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%		none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	[1]	1.00%	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class A, C, R and Y - Invesco Oppenheimer Mid Cap Value Fund		Class A	Class C	Class R	Class Y
Management Fees		0.71%	0.71%	0.71%	0.71%
Distribution and/or Service (12b-1) Fees		0.25%	1.00%	0.50%	none
Other Expenses	[1]	0.23%	0.23%	0.23%	0.23%
Total Annual Fund Operating Expenses		1.19%	1.94%	1.44%	0.94%
Fee Waiver and/or Expense Reimbursement	[2]	0.03%	0.04%	0.04%	0.03%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		1.16%	1.90%	1.40%	0.91%

<b>Example.</b>

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 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 for the contractual period above 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 - Class A, C, R and Y - Invesco Oppenheimer Mid Cap Value Fund - USD ($)	1 Year	3 Years
Class A	662	901
Class C	293	601
Class R	143	447
Class Y	93	293

You would pay the following expenses if you did not redeem your shares:

Expense Example, No Redemption - Class A, C, R and Y - Invesco Oppenheimer Mid Cap Value Fund - USD ($)	1 Year	3 Years
Class A	662	901
Class C	193	601
Class R	143	447
Class Y	93	293

<b>Portfolio Turnover. </b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

Under normal market conditions, the Fund invests at least 80% of its net assets, including any borrowings for investment purposes, in securities of “mid cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers mid cap companies to be those having a market capitalization in the range of the Russell Midcap^® Value Index, a measure of the mid cap value market. The capitalization range of the index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell Midcap^® Value Index generally widens over time and is reconstituted annually to preserve its mid cap characteristics. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition. The Fund may also invest in small cap companies, and up to 5% of its total assets in securities of unseasoned companies.

The Fund primarily invests in U.S. companies but may also purchase securities of issuers in any country, including developing and emerging market countries. While the Fund has no limits on the percentage of its assets it can invest in foreign securities, normally it does not expect to invest substantial amounts of its assets in foreign securities and generally limits investments in emerging markets to not more than 5% of its total assets. The Fund emphasizes securities that the portfolio manager believes are undervalued.

In selecting investments for the Fund, the portfolio managers look for stocks of mid-cap companies that they believe have been undervalued by the market. A security may be undervalued because the market is not aware of the issuer’s intrinsic value, does not yet recognize its future potential, or the issuer may be temporarily out of favor. The Fund seeks to realize gains in the prices of those securities when other investors recognize their real or prospective worth. The portfolio managers use a “bottom up” approach to select securities one at a time before considering industry trends. Those companies may have a low ratio of their stock price to earnings, for example. The portfolio managers also analyze factors such as a company’s book value, sales, earnings, growth potential and cash flows.

After considering these criteria, the portfolio manager may also look at broader industry and economic trends that could affect the growth potential of particular mid-cap stocks. The portfolio managers currently focus on companies with the following characteristics, which may vary in particular cases and may change over time:

• Favorable supply/demand conditions for key products
• Development of new products or businesses
• Quality of management
• Competitive position in the marketplace
• Effective allocation of capital

The Fund may sell securities that the portfolio manager believes no longer meet the above criteria, but is not required to do so.

<b>Principal Risks of Investing in the Fund </b>

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. The principal risks of investing in the Fund are:

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Mid-Cap Companies. Mid-cap companies generally involve greater risk of loss than larger companies. The prices of securities issued by mid-sized companies may be more volatile and their securities may be less liquid and more difficult to sell than those of larger companies. They may have less established markets, fewer customers and product lines, less management depth and more limited access to financial resources. Mid-cap companies may not pay dividends for some time, if at all.

Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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.

Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 1.16%, 1.90%, 1.40% and 0.91%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class A, C, R and Y | Invesco Oppenheimer Mid Cap Value Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek capital appreciation.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. 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). Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class Y shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees </b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover. </b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
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. 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).
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” are based on estimated amounts for the current fiscal year.<br/><br/>
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 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 for the contractual period above 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 Narrative [Text Block]	rr_ExpenseExampleNoRedemptionNarrativeTextBlock	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the Fund invests at least 80% of its net assets, including any borrowings for investment purposes, in securities of “mid cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers mid cap companies to be those having a market capitalization in the range of the Russell Midcap® Value Index, a measure of the mid cap value market. The capitalization range of the index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell Midcap® Value Index generally widens over time and is reconstituted annually to preserve its mid cap characteristics. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition. The Fund may also invest in small cap companies, and up to 5% of its total assets in securities of unseasoned companies. The Fund primarily invests in U.S. companies but may also purchase securities of issuers in any country, including developing and emerging market countries. While the Fund has no limits on the percentage of its assets it can invest in foreign securities, normally it does not expect to invest substantial amounts of its assets in foreign securities and generally limits investments in emerging markets to not more than 5% of its total assets. The Fund emphasizes securities that the portfolio manager believes are undervalued. In selecting investments for the Fund, the portfolio managers look for stocks of mid-cap companies that they believe have been undervalued by the market. A security may be undervalued because the market is not aware of the issuer’s intrinsic value, does not yet recognize its future potential, or the issuer may be temporarily out of favor. The Fund seeks to realize gains in the prices of those securities when other investors recognize their real or prospective worth. The portfolio managers use a “bottom up” approach to select securities one at a time before considering industry trends. Those companies may have a low ratio of their stock price to earnings, for example. The portfolio managers also analyze factors such as a company’s book value, sales, earnings, growth potential and cash flows. After considering these criteria, the portfolio manager may also look at broader industry and economic trends that could affect the growth potential of particular mid-cap stocks. The portfolio managers currently focus on companies with the following characteristics, which may vary in particular cases and may change over time: Favorable supply/demand conditions for key products Development of new products or businesses Quality of management Competitive position in the marketplace Effective allocation of capital The Fund may sell securities that the portfolio manager believes no longer meet the above criteria, but is not required to do so.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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. The principal risks of investing in the Fund are: Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Mid-Cap Companies. Mid-cap companies generally involve greater risk of loss than larger companies. The prices of securities issued by mid-sized companies may be more volatile and their securities may be less liquid and more difficult to sell than those of larger companies. They may have less established markets, fewer customers and product lines, less management depth and more limited access to financial resources. Mid-cap companies may not pay dividends for some time, if at all. Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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. Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class A, C, R and Y | Invesco Oppenheimer Mid Cap Value 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_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	0.71%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.23%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.19%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.03%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.16%
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).”
1 Year	rr_ExpenseExampleYear01	$ 662
3 Years	rr_ExpenseExampleYear03	901
1 Year	rr_ExpenseExampleNoRedemptionYear01	662
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 901
Class A, C, R and Y | Invesco Oppenheimer Mid Cap Value 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_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	0.71%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.23%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.94%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.04%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.90%
1 Year	rr_ExpenseExampleYear01	$ 293
3 Years	rr_ExpenseExampleYear03	601
1 Year	rr_ExpenseExampleNoRedemptionYear01	193
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 601
Class A, C, R and Y | Invesco Oppenheimer Mid Cap Value 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.71%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Other Expenses	rr_OtherExpensesOverAssets	0.23%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.44%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.04%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	1.40%
1 Year	rr_ExpenseExampleYear01	$ 143
3 Years	rr_ExpenseExampleYear03	447
1 Year	rr_ExpenseExampleNoRedemptionYear01	143
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 447
Class A, C, R and Y | Invesco Oppenheimer Mid Cap Value 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.71%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.23%	[2]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.94%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.03%	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.91%
1 Year	rr_ExpenseExampleYear01	$ 93
3 Years	rr_ExpenseExampleYear03	293
1 Year	rr_ExpenseExampleNoRedemptionYear01	93
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 293

[1] A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSCs).”

[2] “Other Expenses” are based on estimated amounts for the current fiscal year.

[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 (excluding certain items discussed in the SAI) of Class A, Class C, Class R and Class Y shares to 1.16%, 1.90%, 1.40% and 0.91%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Class R5 and R6 | Invesco Oppenheimer Mid Cap Value Fund

<b>Fund Summary </b>

<b>Investment Objective(s) </b>

The Fund’s investment objective is to seek capital appreciation.

<b>Fees and Expenses of the Fund </b>

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.

<b>Shareholder Fees</b> (fees paid directly from your investment)

Shareholder Fees - Class R5 and R6 - Invesco Oppenheimer Mid Cap Value Fund	Class R5	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	none	none

<b>Annual Fund Operating Expenses </b> (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class R5 and R6 - Invesco Oppenheimer Mid Cap Value Fund		Class R5	Class R6
Management Fees		0.71%	0.71%
Distribution and/or Service (12b-1) Fees		none	none
Other Expenses	[1]	0.12%	0.07%
Total Annual Fund Operating Expenses		0.83%	0.78%
Fee Waiver and/or Expense Reimbursement	[2]	0.03%	0.03%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement		0.80%	0.75%

<b>Example.</b>

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 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 for the contractual period above 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 - Class R5 and R6 - Invesco Oppenheimer Mid Cap Value Fund - USD ($)	1 Year	3 Years
Class R5	82	259
Class R6	77	243

<b>Portfolio Turnover.</b>

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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.

<b>Principal Investment Strategies of the Fund </b>

Under normal market conditions, the Fund invests at least 80% of its net assets, including any borrowings for investment purposes, in securities of “mid cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers mid cap companies to be those having a market capitalization in the range of the Russell Midcap^® Value Index, a measure of the mid cap value market. The capitalization range of the index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell Midcap^® Value Index generally widens over time and is reconstituted annually to preserve its mid cap characteristics. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition. The Fund may also invest in small cap companies, and up to 5% of its total assets in securities of unseasoned companies.

The Fund primarily invests in U.S. companies but may also purchase securities of issuers in any country, including developing and emerging market countries. While the Fund has no limits on the percentage of its assets it can invest in foreign securities, normally it does not expect to invest substantial amounts of its assets in foreign securities and generally limits investments in emerging markets to not more than 5% of its total assets. The Fund emphasizes securities that the portfolio manager believes are undervalued.

In selecting investments for the Fund, the portfolio managers look for stocks of mid-cap companies that they believe have been undervalued by the market. A security may be undervalued because the market is not aware of the issuer’s intrinsic value, does not yet recognize its future potential, or the issuer may be temporarily out of favor. The Fund seeks to realize gains in the prices of those securities when other investors recognize their real or prospective worth. The portfolio managers use a “bottom up” approach to select securities one at a time before considering industry trends. Those companies may have a low ratio of their stock price to earnings, for example. The portfolio managers also analyze factors such as a company’s book value, sales, earnings, growth potential and cash flows. After considering these criteria, the portfolio manager may also look at broader industry and economic trends that could affect the growth potential of particular mid-cap stocks. The portfolio managers currently focus on companies with the following characteristics, which may vary in particular cases and may change over time:

• Favorable supply/demand conditions for key products
• Development of new products or businesses
• Quality of management
• Competitive position in the marketplace
• Effective allocation of capital

The Fund may sell securities that the portfolio manager believes no longer meet the above criteria, but is not required to do so.

<b>Principal Risks of Investing in the Fund </b>

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. The principal risks of investing in the Fund are:

Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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.

Risks of Mid-Cap Companies. Mid-cap companies generally involve greater risk of loss than larger companies. The prices of securities issued by mid-sized companies may be more volatile and their securities may be less liquid and more difficult to sell than those of larger companies. They may have less established markets, fewer customers and product lines, less management depth and more limited access to financial resources. Mid-cap companies may not pay dividends for some time, if at all.

Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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.

Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry.

Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.

<b>Performance Information </b>

No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.80% and 0.75%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Class R5 and R6 | Invesco Oppenheimer Mid Cap Value Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<b>Fund Summary </b>
Objective [Heading]	rr_ObjectiveHeading	<b>Investment Objective(s) </b>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek capital appreciation.
Expense [Heading]	rr_ExpenseHeading	<b>Fees and Expenses of the Fund </b>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay commissions and/or other forms of compensation to an intermediary, such as a broker, for transactions in Class R6 shares, which are not reflected in the table or the Example below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<b>Shareholder Fees</b> (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<b>Annual Fund Operating Expenses </b> (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	May 28, 2021
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<b>Portfolio Turnover.</b>
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. No portfolio turnover rate is disclosed because the Fund had not yet commenced operations prior to the date of this prospectus.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	“Other Expenses” are based on estimated amounts for the current fiscal year.<br/><br/>
Expense Example [Heading]	rr_ExpenseExampleHeading	<b>Example.</b>
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 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 for the contractual period above 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:
Strategy [Heading]	rr_StrategyHeading	<b>Principal Investment Strategies of the Fund </b>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the Fund invests at least 80% of its net assets, including any borrowings for investment purposes, in securities of “mid cap” companies, and in derivatives and other instruments that have economic characteristics similar to such securities. A company’s “market capitalization” is the value of its outstanding common stock. The Fund considers mid cap companies to be those having a market capitalization in the range of the Russell Midcap® Value Index, a measure of the mid cap value market. The capitalization range of the index is subject to change at any time due to market activity or changes in the composition of the index. The range of the Russell Midcap® Value Index generally widens over time and is reconstituted annually to preserve its mid cap characteristics. The Fund measures a company’s capitalization at the time the Fund buys a security and is not required to sell a security if the company’s capitalization moves outside of the Fund’s capitalization definition. The Fund may also invest in small cap companies, and up to 5% of its total assets in securities of unseasoned companies. The Fund primarily invests in U.S. companies but may also purchase securities of issuers in any country, including developing and emerging market countries. While the Fund has no limits on the percentage of its assets it can invest in foreign securities, normally it does not expect to invest substantial amounts of its assets in foreign securities and generally limits investments in emerging markets to not more than 5% of its total assets. The Fund emphasizes securities that the portfolio manager believes are undervalued. In selecting investments for the Fund, the portfolio managers look for stocks of mid-cap companies that they believe have been undervalued by the market. A security may be undervalued because the market is not aware of the issuer’s intrinsic value, does not yet recognize its future potential, or the issuer may be temporarily out of favor. The Fund seeks to realize gains in the prices of those securities when other investors recognize their real or prospective worth. The portfolio managers use a “bottom up” approach to select securities one at a time before considering industry trends. Those companies may have a low ratio of their stock price to earnings, for example. The portfolio managers also analyze factors such as a company’s book value, sales, earnings, growth potential and cash flows. After considering these criteria, the portfolio manager may also look at broader industry and economic trends that could affect the growth potential of particular mid-cap stocks. The portfolio managers currently focus on companies with the following characteristics, which may vary in particular cases and may change over time: Favorable supply/demand conditions for key products Development of new products or businesses Quality of management Competitive position in the marketplace Effective allocation of capital The Fund may sell securities that the portfolio manager believes no longer meet the above criteria, but is not required to do so.
Risk [Heading]	rr_RiskHeading	<b>Principal Risks of Investing in the Fund </b>
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. The principal risks of investing in the Fund are: Risks of Investing in Stocks. The value of the Fund’s portfolio may be affected by changes in the stock markets. Stock markets may experience significant short-term volatility and may fall 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. 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. Risks of Mid-Cap Companies. Mid-cap companies generally involve greater risk of loss than larger companies. The prices of securities issued by mid-sized companies may be more volatile and their securities may be less liquid and more difficult to sell than those of larger companies. They may have less established markets, fewer customers and product lines, less management depth and more limited access to financial resources. Mid-cap companies may not pay dividends for some time, if at all. Risks of Value Investing. Value investing entails the risk that if the market does not recognize that a fund’s securities are undervalued, the prices of those securities 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 a 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. Industry and Sector Focus. At times the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of stocks of issuers in a particular industry or sector may go up and down in response to changes in economic conditions, government regulations, availability of basic resources or supplies, or other events that affect that industry or sector more than others. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, its share values may fluctuate in response to events affecting that industry or sector. To some extent that risk may be limited by the Fund’s policy of not concentrating its investments in any one industry. Risks of Foreign Investing. Foreign securities are subject to special risks. Securities traded in foreign markets may be less liquid and more volatile than those traded in U.S. markets. Foreign issuers are usually not subject to the same accounting and disclosure requirements that U.S. companies are subject to, which may make it difficult for the Fund to evaluate a foreign company’s operations or financial condition. A change in the value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of investments denominated in that foreign currency and in the value of any income or distributions the Fund may receive on those investments. The value of foreign investments may be affected by exchange control regulations, foreign taxes, higher transaction and other costs, delays in the settlement of transactions, changes in economic or monetary policy in the United States or abroad, expropriation or nationalization of a company’s assets, or other political and economic factors. In addition, due to the inter-relationship of global economies and financial markets, changes in political and economic factors in one country or region could adversely affect conditions in another country or region. Investments in foreign securities may also expose the Fund to time-zone arbitrage risk. Foreign securities may trade on weekends or other days when the Fund does not price its shares. As a result, the value of the Fund’s net assets may change on days when you will not be able to purchase or redeem the Fund’s shares. At times, the Fund may emphasize investments in a particular country or region and may be subject to greater risks from adverse events that occur in that country or region. Foreign securities and foreign currencies held in foreign banks and securities depositories may be subject to only limited or no regulatory oversight.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any mutual fund investment, loss of money is a risk of investing.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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	<b>Performance Information </b>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is available for the Fund because it has not yet completed a full calendar year of operations. In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year. Past performance (before and after taxes) is not necessarily an indication of its future performance.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	In the future, the Fund will disclose performance information in a bar chart and performance table. Such disclosure will give some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance and by showing changes in the Fund’s performance from year to year.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is available for the Fund because it has not yet completed a full calendar year of operations.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) is not necessarily an indication of its future performance.
Class R5 and R6 | Invesco Oppenheimer Mid Cap Value 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.71%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.12%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.83%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.03%	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.80%
1 Year	rr_ExpenseExampleYear01	$ 82
3 Years	rr_ExpenseExampleYear03	$ 259
Class R5 and R6 | Invesco Oppenheimer Mid Cap Value 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_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.71%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.07%	[1]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.78%
Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	0.03%	[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	rr_NetExpensesOverAssets	0.75%
1 Year	rr_ExpenseExampleYear01	$ 77
3 Years	rr_ExpenseExampleYear03	$ 243

[1] “Other Expenses” are based on estimated amounts for the current fiscal year.

[2] 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 (excluding certain items discussed in the statement of additional information (SAI)) of Class R5 and Class R6 shares to 0.80% and 0.75%, respectively, of the Fund’s average daily net assets (the “expense limits”) through at least May 28, 2021. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Jan. 23, 2019
Document Creation Date	dei_DocumentCreationDate	Jan. 23, 2019