Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	AIM GROWTH SERIES (INVESCO GROWTH SERIES)
Prospectus Date	rr_ProspectusDate	Apr. 29, 2013
Class R5 and R6 Prospectus | INVESCO CONVERTIBLE SECURITIES FUND
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Fund Summary
Objective [Heading]	rr_ObjectiveHeading	Investment Objective(s)
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund's investment objective is to seek total return through growth of capital and current income.
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 Institutional Class 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 58% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	58.00%
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, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in convertible securities, and in derivatives and other instruments that have economic characteristics similar to such securities.       The Fund may invest in below-investment grade securities. Below-investment grade securities are commonly referred to as junk bonds. Investment grade securities are: (i) securities rated BBB- or higher by Standard & Poor's Ratings Services (S&P) or Baa3 or higher by Moody's Investors Service, Inc. (Moody's) or an equivalent rating by another nationally recognized statistical rating organization (NRSRO), (ii) securities with comparable short-term NRSRO ratings, or (iii) unrated securities determined by Invesco Advisers, Inc. (the Adviser), the Fund's investment adviser, to be of comparable quality at the time of purchase.       The Fund may invest up to 10% of its net assets in synthetic convertible securities and up to 25% of its net assets in exchangeable convertible securities. The Fund may invest up to 20% of its net assets in common stocks, non-convertible preferred stocks and non-convertible fixed-income securities.       The Fund may invest up to 20% of its net assets in foreign securities, including securities of issuers located in emerging markets countries, i.e., those that are in the initial stages of their industrial cycles, non-U.S. dollar denominated securities and depositary receipts. This percentage limitation, however, does not apply to securities of foreign companies that are listed in the United States on a national securities exchange.       The Fund may invest in illiquid or thinly traded securities. The Fund may also invest in securities that are subject to resale restrictions such as those contained in Rule 144A promulgated under the Securities Act of 1933.       The Fund can invest in derivative instruments including forward foreign currency contracts.       The Fund can use forward foreign currency contracts to hedge against adverse movements in the foreign currencies in which portfolio securities are denominated.       The Fund focuses on managing traditional convertible securities that offer a balanced risk reward profile over a full market cycle. The Fund invests in traditional convertible securities with reasonable valuations that show potential for strong total return through interest or dividend, coupled with the upside participation found in the option value embedded in the securities. The portfolio managers focus on positions issued by well-managed companies with strong balance sheets, a clear business focus, and competitive advantages versus their peers. Alpha (return on investments in excess of the Bank of America Merrill Lynch All U.S. Convertibles Index) is also added to the portfolio through careful credit analysis and security selection.       The portfolio managers employ a barbell approach to investing, allowing them to target the delta or equity sensitivity of the portfolio based on market conditions. The portfolio managers will increase or decrease the Fund's delta based on their macro-economic views. For instance, in a strong equity market, the team may increase exposure to equity-like convertible securities. Equity-like convertible securities exhibit characteristics such as lower yields, greater equity sensitivity and lower conversion premiums. Conversely, in a weak equity market, the Fund may seek to reduce exposure to equity-like convertible securities, investing more in traditional and "busted" or fixed-income-like convertible securities. Busted convertible securities exhibit more bond-like characteristics such as higher yield, conversion premium and less downside risk relative to the common stock from which the security was converted.       Decisions to purchase or sell securities are determined by the relative value considerations of the investment professionals, which factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities.
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 government 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:        Convertible Securities Risk. The Fund may own convertible securities, the value of which may be affected by market interest rates, the risk that the issuer will default, the value of the underlying stock or the right of the issuer to buy back the convertible securities.        Credit Risk. The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer's credit rating.        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, commodity 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 Adviser elects not to do so due to availability, cost, market conditions or other factors.        Developing/Emerging Markets Securities Risk. The prices of securities issued by foreign companies and governments located in developing/emerging markets 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.        High Yield Bond (Junk Bond) Risk. Junk bonds involve a greater risk of default or price changes due to changes in the credit quality of the issuer. The values of junk bonds fluctuate more than those of high-quality bonds in response to company, political, regulatory or economic developments. Values of junk bonds can decline significantly over short periods of time.        Interest Rate Risk. Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.        Liquidity Risk. The Fund may hold illiquid securities that it is unable to sell at the preferred time or price and could lose its entire investment in such securities.        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.
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 government 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 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 the Fund. The Fund's and Morgan Stanley Convertible Securities Fund's (the predecessor fund's) past performance (before and after taxes) is not necessarily an indication of its future performance.       The returns shown prior to June 1, 2010 are those of the Class A shares of the predecessor fund. The predecessor fund was advised by Morgan Stanley Investment Advisors Inc. Class R5 and Class R6 shares' returns of the Fund will be different from the predecessor fund as they have different expenses.       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 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 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 and Morgan Stanley Convertible Securities Fund's (the predecessor 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 March 28, 2013): 6.97% Best Quarter (ended March 31, 2012): 9.02% Worst Quarter (ended June 30, 2012): -2.18%
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns (for the periods ended December 31, 2012)
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 arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class R5 shares only and after-tax returns for other classes will vary.
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 arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Class R5 shares only and after-tax returns for other classes will vary.
Class R5 and R6 Prospectus | INVESCO CONVERTIBLE SECURITIES 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	0.51%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.10%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.61%
1 Year	rr_ExpenseExampleYear01	62
3 Years	rr_ExpenseExampleYear03	195
5 Years	rr_ExpenseExampleYear05	340
10 Years	rr_ExpenseExampleYear10	762
2012	rr_AnnualReturn2012	14.07%
Year to Date Return, Label	rr_YearToDateReturnLabel	Class R5 shares year-to-date
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Mar. 28, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	6.97%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Mar. 31, 2012
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	9.02%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Jun. 30, 2012
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(2.18%)
1 Year	rr_AverageAnnualReturnYear01	14.07%	[1]
5 Years	rr_AverageAnnualReturnYear05	5.62%	[1]
10 Years	rr_AverageAnnualReturnYear10	7.81%	[1]
Inception Date	rr_AverageAnnualReturnInceptionDate	May 23, 2011	[1]
Class R5 and R6 Prospectus | INVESCO CONVERTIBLE SECURITIES 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	0.51%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.08%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.59%
1 Year	rr_ExpenseExampleYear01	60
3 Years	rr_ExpenseExampleYear03	189
5 Years	rr_ExpenseExampleYear05	329
10 Years	rr_ExpenseExampleYear10	738
1 Year	rr_AverageAnnualReturnYear01	13.72%	[1]
5 Years	rr_AverageAnnualReturnYear05	5.51%	[1]
10 Years	rr_AverageAnnualReturnYear10	7.75%	[1]
Inception Date	rr_AverageAnnualReturnInceptionDate	Sep. 24, 2012	[1]
Class R5 and R6 Prospectus | INVESCO CONVERTIBLE SECURITIES FUND | Return After Taxes on Distributions | Class R5
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	13.28%	[1]
5 Years	rr_AverageAnnualReturnYear05	4.65%	[1]
10 Years	rr_AverageAnnualReturnYear10	6.87%	[1]
Inception Date	rr_AverageAnnualReturnInceptionDate	May 23, 2011	[1]
Class R5 and R6 Prospectus | INVESCO CONVERTIBLE SECURITIES FUND | Return After Taxes on Distributions and Sale of Fund Shares | Class R5
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	9.37%	[1]
5 Years	rr_AverageAnnualReturnYear05	4.29%	[1]
10 Years	rr_AverageAnnualReturnYear10	6.33%	[1]
Inception Date	rr_AverageAnnualReturnInceptionDate	May 23, 2011	[1]
Class R5 and R6 Prospectus | INVESCO CONVERTIBLE SECURITIES FUND | Bank of America Merrill Lynch All U.S. Convertibles Index (reflects no deductions for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	14.96%
5 Years	rr_AverageAnnualReturnYear05	4.06%
10 Years	rr_AverageAnnualReturnYear10	7.31%
Class R5 and R6 Prospectus | INVESCO CONVERTIBLE SECURITIES FUND | Lipper Convertible Securities Funds Index
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	11.53%
5 Years	rr_AverageAnnualReturnYear05	3.21%
10 Years	rr_AverageAnnualReturnYear10	7.30%

[1] Class R5 and R6 shares' performance shown prior to the inception date is that of the predecessor fund's 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 reimbursement. The inception date of the predecessor fund's Class A shares is July 28, 1997.