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Risk/Return: rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date rr_ProspectusDate Sep. 24, 2012
INVESCO Global Quantitative Core Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Fund Summaries - INVESCO GLOBAL QUANTITATIVE CORE FUND
Objective [Heading] rr_ObjectiveHeading Investment Objective(s)
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Fund’s investment objective is long-term growth of capital.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover.
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 86% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 86.00%
Expense Example [Heading] rr_ExpenseExampleHeading Example.
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

      The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. 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 Principal Investment Strategies of the Fund
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock The Fund invests primarily in equity securities, specifically, common and preferred stocks, convertible securities, rights and warrants to purchase common stock and depositary receipts.

      The Fund invests, under normal circumstances, in issuers located in at least three different countries, including the U.S.

      The Fund emphasizes investment in issuers in the U.S. and in the developed countries of Western Europe and in the Pacific Basin. The Fund may also invest up to 20% of its total assets in issuers located in developing countries, i.e., those that are in the initial stages of their industrial cycles. As of December 31, 2011, the principal countries in which the Fund was invested were the United States, Japan, the United Kingdom, Canada and Sweden.

      The portfolio managers will consider selling or reducing a security position (i) if the forecasted return of a security becomes less attractive relative to industry peers or (ii) if a particular security’s risk profile changes.

      The portfolio managers use quantitative, research based models to select potential investment securities. They then use proprietary and non-proprietary models to forecast risks and transaction costs. This information is used to structure the Fund’s portfolio. When building the portfolio, the portfolio managers consider the securities of the MSCI World Index as well as securities that are not included in the MSCI World Index. They then apply a quantitative stock selection model to the securities to create a return/risk forecast prior to constructing the portfolio.

      The Fund can invest in derivatives, including index futures.

      Index futures can be used to gain exposure to the broad market by equitizing cash and as a hedge against downside risk. A stock index futures contract is an exchange-traded contract that provides for the delivery, at a designated date, time and place, of an amount of cash equal to a specified dollar amount times the difference between the stock index value at the close of trading on the date specified in the contract and the price agreed upon in the futures contract; no physical delivery of stocks comprising the index is made.
Risk [Heading] rr_RiskHeading Principal Risks of Investing in the Fund
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:

      Currency/Exchange Rate Risk. The dollar value of the Fund’s foreign investments will be affected by changes in the exchange rates between the dollar and the currencies in which those investments are traded.

      Depositary Receipts Risk. Depositary receipts involve many of the same risks as those associated with direct investment in foreign securities. In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered depositary receipts, are under no obligation to distribute shareholder communications to the holders of such receipts or to pass through to them any voting rights with respect to the deposited securities.

      Derivatives Risk. The performance of derivative instruments is tied to the performance of an underlying currency, security, index or other instrument. In addition to risks relating to their underlying instruments, the use of derivatives may include other, possibly greater, risks. Derivatives involve costs, may be volatile, and may involve a small initial investment relative to the risk assumed. Risks associated with the use of derivatives may include counterparty, leverage, correlation, liquidity, tax, market, interest rate and management risks. Derivatives may also be more difficult to purchase, sell or value than other investments. The Fund may lose more than the cash amount invested on investments in derivatives. Investors should bear in mind that, while the Fund intends to use derivative strategies, it is not obligated to actively engage in these transactions, generally or in any particular kind of derivative, if the investment manager elects not to do so due to availability, cost, market conditions or other factors.

      Developing/Emerging Markets Securities Risk. Securities issued by foreign companies and governments located in developing/emerging countries may be affected more negatively by inflation, devaluation of their currencies, higher transaction costs, delays in settlement, adverse political developments, the introduction of capital controls, withholding taxes, nationalization of private assets, expropriation, social unrest, war or lack of timely information than those in developed countries.

      Foreign Securities Risk. The Fund’s foreign investments may be affected by changes in a foreign country’s exchange rates, political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies.

      Geographic Concentration Risk. Because the Fund has a significant level of investment in issuers in the developed countries of Western Europe and Japan, the Fund’s performance is expected to be closely tied to social, political and economic conditions within countries in those regions and to be more volatile than the performance of more geographically diversified funds.

      Management Risk. The investment techniques and risk analysis used by the Fund’s portfolio managers may not produce the desired results.

      Market Risk. The prices of and the income generated by the Fund’s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and currency and interest rate fluctuations.

      Synthetic Securities Risk. Fluctuations in the values of synthetic securities may not correlate perfectly with the instruments they are designed to replicate. Synthetic securities may be subject to interest rate changes, market price fluctuations, counterparty risk and liquidity risk.
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 Performance Information
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund’s performance to that of a broad-based securities market/style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available on the Fund’s Web site at www.invesco.com/us.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund’s performance to that of a broad-based securities market/style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.invesco.com/us
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Class R5 shares year-to-date (ended June 30, 2012): 4.91%
Best Quarter (ended June 30, 2009): 20.40%
Worst Quarter (ended December 31, 2008): -24.01%
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for the periods ended December 31, 2011)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans or individual retirement accounts.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans or individual retirement accounts.
INVESCO Global Quantitative Core 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 0.80%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.18%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.98%
1 Year rr_ExpenseExampleYear01 100
3 Years rr_ExpenseExampleYear03 312
5 Years rr_ExpenseExampleYear05 542
10 Years rr_ExpenseExampleYear10 1,201
2005 rr_AnnualReturn2005 9.97%
2006 rr_AnnualReturn2006 19.40%
2007 rr_AnnualReturn2007 5.58%
2008 rr_AnnualReturn2008 (43.64%)
2009 rr_AnnualReturn2009 28.47%
2010 rr_AnnualReturn2010 13.76%
2011 rr_AnnualReturn2011 (2.44%)
Year to Date Return, Label rr_YearToDateReturnLabel Class R5 shares year-to-date
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2012
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 4.91%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.40%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (24.01%)
1 Year rr_AverageAnnualReturnYear01 (2.44%) [1]
5 Years rr_AverageAnnualReturnYear05 (3.23%) [1]
10 Years rr_AverageAnnualReturnYear10 5.41% [1]
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2004
INVESCO Global Quantitative Core Fund | Return After Taxes on Distributions | Class R5
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.75%) [1]
5 Years rr_AverageAnnualReturnYear05 (4.34%) [1]
10 Years rr_AverageAnnualReturnYear10 4.20% [1]
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2004
INVESCO Global Quantitative Core Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class R5
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.17%) [1]
5 Years rr_AverageAnnualReturnYear05 (2.96%) [1]
10 Years rr_AverageAnnualReturnYear10 4.43% [1]
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2004
INVESCO Global Quantitative Core Fund | MSCI World IndexSM(reflects no deduction for fees, expenses or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (5.54%)
5 Years rr_AverageAnnualReturnYear05 (2.37%)
10 Years rr_AverageAnnualReturnYear10 3.62%
INVESCO Global Quantitative Core Fund | Lipper Global Multi-Cap Core Funds Index
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (4.71%)
5 Years rr_AverageAnnualReturnYear05 (0.56%)
10 Years rr_AverageAnnualReturnYear10 4.98%
[1] Class R5 shares' performance shown prior to the inception date is that of Class A shares and includes the 12b-1 fees applicable to Class A shares. Class A shares' performance reflects any applicable fee waivers and/or expense reimbursements. The inception date of the Fund's Class A shares is September 15, 1997.