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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 Apr. 29, 2013
Supplement [Text Block] aimgs_SupplementTextBlock Summary and Statutory Prospectus Supplement dated June 28, 2013

The purpose of this mailing is to provide you with changes to the current Summary and Statutory Prospectuses for Class A, B, C, R and Y shares of the Fund listed below:

Invesco Conservative Allocation Fund

The following information replaces in its entirety the information appearing under the heading "Performance Information – Average Annual Total Returns":

"Average Annual Total Returns (for the periods ended December 31, 2012)
                         
    1   5   Since
    Year   Years   Inception
 
Class A shares: Inception (4/29/2005)
                       
Return Before Taxes
    5.15 %     1.98 %     4.04 %
Return After Taxes on Distributions
    4.04       0.70       2.84  
Return After Taxes on Distributions and Sale of Fund Shares
    3.47       0.94       2.80  
 
Class B shares: Inception (4/29/2005)
    5.33       2.03       4.03  
 
Class C shares: Inception (4/29/2005)
    9.31       2.39       4.05  
 
Class R shares: Inception (4/29/2005)
    10.92       2.89       4.55  
 
Class Y shares1: Inception (10/3/2008)
    11.46       3.30       4.92  
 
S&P 500® Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    16.00       1.66       4.96  
 
Custom Conservative Allocation Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    8.65       4.05       5.56  
 
Lipper Mixed-Asset Target Allocation Conservative Funds Index (from 4/30/2005)
    8.92       4.32       5.45  
 
1   Class Y 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.

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 A shares only and after-tax returns for other classes will vary."

Statutory Prospectus Supplement dated June 28, 2013

The purpose of this mailing is to provide you with changes to the current Statutory Prospectus for Class S shares of the Funds listed below:

Invesco Conservative Allocation Fund

The following information replaces in its entirety the information appearing under the heading "Fund Summaries – INVESCO CONSERVATIVE ALLOCATION FUND – Performance Information – Average Annual Total Returns":

"Average Annual Total Returns (for the periods ended December 31, 2012)
                         
    1   5   Since
    Year   Years   Inception
 
Class S shares1: Inception (6/3/2011)
                       
Return Before Taxes
    11.27 %     3.16 %     4.83 %
Return After Taxes on Distributions
    10.07       1.85       3.61  
Return After Taxes on Distributions and Sale of Fund Shares
    7.46       1.94       3.48  
 
S&P 500® Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    16.00       1.66       4.96  
 
Custom Conservative Allocation Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    8.65       4.05       5.56  
 
Lipper Mixed-Asset Target Allocation Conservative Funds Index (from 4/30/2005)
    8.92       4.32       5.45  
 
1   Class S 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 April 29, 2005.

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."

Statutory Prospectus Supplement dated June 28, 2013

The purpose of this mailing is to provide you with changes to the current Statutory Prospectus for Class R5 and Class R6 shares, as applicable, of the Funds listed below:

Invesco Conservative Allocation Fund
Invesco Income Allocation Fund

The following information replaces in its entirety the information appearing under the heading "Fund Summaries – INVESCO CONSERVATIVE ALLOCATION FUND – Performance Information – Average Annual Total Returns":

"Average Annual Total Returns (for the periods ended December 31, 2012)
                         
    1   5   Since
    Year   Years   Inception
 
Class R5 shares: Inception (4/29/2005)
                       
Return Before Taxes
    11.56 %     3.40 %     5.08 %
Return After Taxes on Distributions
    10.29       2.02       3.79  
Return After Taxes on Distributions and Sale of Fund Shares
    7.66       2.10       3.66  
 
S&P 500® Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    16.00       1.66       4.96  
 
Custom Conservative Allocation Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    8.65       4.05       5.56  
 
Lipper Mixed-Asset Target Allocation Conservative Funds Index (from 4/30/2005)
    8.92       4.32       5.45  
 

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."

The following information replaces in its entirety the information appearing under the heading "Fund Summaries – INVESCO INCOME ALLOCATION FUND – Performance Information – Average Annual Total Returns":

"Average Annual Total Returns (for the periods ended December 31, 2012)
                         
    1   5   Since
    Year   Years   Inception
 
Class R5 shares: Inception (10/31/2005)
                       
Return Before Taxes
    12.12 %     4.80 %     5.82 %
Return After Taxes on Distributions
    10.85       3.20       4.18  
Return After Taxes on Distributions and Sale of Fund Shares
    8.06       3.21       4.09  
 
S&P 500® Index (reflects no deduction for fees, expenses or taxes)
    16.00       1.66       4.57  
 
Custom Income Allocation Index (reflects no deduction for fees, expenses or taxes)
    9.68       5.35       6.21  
 
Lipper Mixed-Asset Target Allocation Conservative Funds Index
    8.92       4.32       5.35  
 

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."

Summary and Statutory Prospectus Supplement dated June 28, 2013

The purpose of this mailing is to provide you with changes to the current Summary and Statutory Prospectuses for Class A, B, C, R and Y shares of the Fund listed below:

Invesco Income Allocation Fund

The following information replaces in its entirety the information appearing under the heading "Performance Information – Average Annual Total Returns":

"Average Annual Total Returns (for the periods ended December 31, 2012)
                         
    1   5   Since
    Year   Years   Inception
 
Class A shares: Inception (10/31/2005)
                       
Return Before Taxes
    5.68 %     3.36 %     4.73 %
Return After Taxes on Distributions
    4.57       1.86       3.19  
Return After Taxes on Distributions and Sale of Fund Shares
    3.85       2.02       3.19  
 
Class B shares: Inception (10/31/2005)
    6.10       3.41       4.76  
 
Class C shares: Inception (10/31/2005)
    9.98       3.75       4.76  
 
Class R shares: Inception (10/31/2005)
    11.55       4.25       5.28  
 
Class Y shares1: Inception (10/3/2008)
    12.12       4.76       5.71  
 
S&P 500® Index (reflects no deduction for fees, expenses or taxes)
    16.00       1.66       4.57  
 
Custom Income Allocation Index (reflects no deduction for fees, expenses or taxes)
    9.68       5.35       6.21  
 
Lipper Mixed-Asset Target Allocation Conservative Funds Index
    8.92       4.32       5.35  
 
1   Class Y 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.

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 A shares only and after-tax returns for other classes will vary."
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund
 
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] aimgs_SupplementTextBlock Summary and Statutory Prospectus Supplement dated June 28, 2013

The purpose of this mailing is to provide you with changes to the current Summary and Statutory Prospectuses for Class A, B, C, R and Y shares of the Fund listed below:

Invesco Conservative Allocation Fund

The following information replaces in its entirety the information appearing under the heading "Performance Information – Average Annual Total Returns":

"Average Annual Total Returns (for the periods ended December 31, 2012)
                         
    1   5   Since
    Year   Years   Inception
 
Class A shares: Inception (4/29/2005)
                       
Return Before Taxes
    5.15 %     1.98 %     4.04 %
Return After Taxes on Distributions
    4.04       0.70       2.84  
Return After Taxes on Distributions and Sale of Fund Shares
    3.47       0.94       2.80  
 
Class B shares: Inception (4/29/2005)
    5.33       2.03       4.03  
 
Class C shares: Inception (4/29/2005)
    9.31       2.39       4.05  
 
Class R shares: Inception (4/29/2005)
    10.92       2.89       4.55  
 
Class Y shares1: Inception (10/3/2008)
    11.46       3.30       4.92  
 
S&P 500® Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    16.00       1.66       4.96  
 
Custom Conservative Allocation Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    8.65       4.05       5.56  
 
Lipper Mixed-Asset Target Allocation Conservative Funds Index (from 4/30/2005)
    8.92       4.32       5.45  
 
1   Class Y 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.

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 A shares only and after-tax returns for other classes will vary."
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 A 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 A shares only and after-tax returns for other classes will vary.
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund | Class A shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.15%
5 Years rr_AverageAnnualReturnYear05 1.98%
Since Inception rr_AverageAnnualReturnSinceInception 4.04%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 29, 2005
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund | Class B shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.33%
5 Years rr_AverageAnnualReturnYear05 2.03%
Since Inception rr_AverageAnnualReturnSinceInception 4.03%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 29, 2005
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund | Class C shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.31%
5 Years rr_AverageAnnualReturnYear05 2.39%
Since Inception rr_AverageAnnualReturnSinceInception 4.05%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 29, 2005
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund | Class R shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.92%
5 Years rr_AverageAnnualReturnYear05 2.89%
Since Inception rr_AverageAnnualReturnSinceInception 4.55%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 29, 2005
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund | Class Y shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.46% [1]
5 Years rr_AverageAnnualReturnYear05 3.30% [1]
Since Inception rr_AverageAnnualReturnSinceInception 4.92% [1]
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 03, 2008 [1]
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund | Return After Taxes on Distributions | Class A shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.04%
5 Years rr_AverageAnnualReturnYear05 0.70%
Since Inception rr_AverageAnnualReturnSinceInception 2.84%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 29, 2005
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class A shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.47%
5 Years rr_AverageAnnualReturnYear05 0.94%
Since Inception rr_AverageAnnualReturnSinceInception 2.80%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 29, 2005
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund | S&P 500® Index (reflects no deduction for fees, expenses or taxes)
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.00%
5 Years rr_AverageAnnualReturnYear05 1.66%
Since Inception rr_AverageAnnualReturnSinceInception 4.96%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2005
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund | Custom Conservative Allocation Index (reflects no deduction for fees, expenses or taxes)
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.65%
5 Years rr_AverageAnnualReturnYear05 4.05%
Since Inception rr_AverageAnnualReturnSinceInception 5.56%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2005
Class A B C R and Y Prospectus | Invesco Conservative Allocation Fund | Lipper Mixed-Asset Target Allocation Conservative Funds Index
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.92%
5 Years rr_AverageAnnualReturnYear05 4.32%
Since Inception rr_AverageAnnualReturnSinceInception 5.45%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2005
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund
 
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] aimgs_SupplementTextBlock

Summary and Statutory Prospectus Supplement dated June 28, 2013

The purpose of this mailing is to provide you with changes to the current Summary and Statutory Prospectuses for Class A, B, C, R and Y shares of the Fund listed below:

Invesco Income Allocation Fund

The following information replaces in its entirety the information appearing under the heading "Performance Information – Average Annual Total Returns":

"Average Annual Total Returns (for the periods ended December 31, 2012)
                         
    1   5   Since
    Year   Years   Inception
 
Class A shares: Inception (10/31/2005)
                       
Return Before Taxes
    5.68 %     3.36 %     4.73 %
Return After Taxes on Distributions
    4.57       1.86       3.19  
Return After Taxes on Distributions and Sale of Fund Shares
    3.85       2.02       3.19  
 
Class B shares: Inception (10/31/2005)
    6.10       3.41       4.76  
 
Class C shares: Inception (10/31/2005)
    9.98       3.75       4.76  
 
Class R shares: Inception (10/31/2005)
    11.55       4.25       5.28  
 
Class Y shares1: Inception (10/3/2008)
    12.12       4.76       5.71  
 
S&P 500® Index (reflects no deduction for fees, expenses or taxes)
    16.00       1.66       4.57  
 
Custom Income Allocation Index (reflects no deduction for fees, expenses or taxes)
    9.68       5.35       6.21  
 
Lipper Mixed-Asset Target Allocation Conservative Funds Index
    8.92       4.32       5.35  
 
1   Class Y 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.

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 A shares only and after-tax returns for other classes will vary."
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 A 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 A shares only and after-tax returns for other classes will vary.
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund | Class A shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.68%
5 Years rr_AverageAnnualReturnYear05 3.36%
Since Inception rr_AverageAnnualReturnSinceInception 4.73%
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 31, 2005
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund | Class B shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.10%
5 Years rr_AverageAnnualReturnYear05 3.41%
Since Inception rr_AverageAnnualReturnSinceInception 4.76%
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 31, 2005
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund | Class C shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.98%
5 Years rr_AverageAnnualReturnYear05 3.75%
Since Inception rr_AverageAnnualReturnSinceInception 4.76%
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 31, 2005
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund | Class R shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.55%
5 Years rr_AverageAnnualReturnYear05 4.25%
Since Inception rr_AverageAnnualReturnSinceInception 5.28%
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 31, 2005
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund | Class Y shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.12% [1]
5 Years rr_AverageAnnualReturnYear05 4.76% [1]
Since Inception rr_AverageAnnualReturnSinceInception 5.71% [1]
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 03, 2008 [1]
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund | Return After Taxes on Distributions | Class A shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.57%
5 Years rr_AverageAnnualReturnYear05 1.86%
Since Inception rr_AverageAnnualReturnSinceInception 3.19%
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 31, 2005
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class A shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.85%
5 Years rr_AverageAnnualReturnYear05 2.02%
Since Inception rr_AverageAnnualReturnSinceInception 3.19%
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 31, 2005
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund | S&P 500® Index (reflects no deduction for fees, expenses or taxes)
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.00%
5 Years rr_AverageAnnualReturnYear05 1.66%
Since Inception rr_AverageAnnualReturnSinceInception 4.57%
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund | Custom Income Allocation Index (reflects no deduction for fees, expenses or taxes)
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.68%
5 Years rr_AverageAnnualReturnYear05 5.35%
Since Inception rr_AverageAnnualReturnSinceInception 6.21%
Class A B C R and Y Prospectus | INVESCO Income Allocation Fund | Lipper Mixed-Asset Target Allocation Conservative Funds Index
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.92%
5 Years rr_AverageAnnualReturnYear05 4.32%
Since Inception rr_AverageAnnualReturnSinceInception 5.35%
Class S Prospectus | Invesco Conservative Allocation Fund
 
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] aimgs_SupplementTextBlock

Statutory Prospectus Supplement dated June 28, 2013

The purpose of this mailing is to provide you with changes to the current Statutory Prospectus for Class S shares of the Funds listed below:

Invesco Conservative Allocation Fund

The following information replaces in its entirety the information appearing under the heading "Fund Summaries – INVESCO CONSERVATIVE ALLOCATION FUND – Performance Information – Average Annual Total Returns":

"Average Annual Total Returns (for the periods ended December 31, 2012)
                         
    1   5   Since
    Year   Years   Inception
 
Class S shares1: Inception (6/3/2011)
                       
Return Before Taxes
    11.27 %     3.16 %     4.83 %
Return After Taxes on Distributions
    10.07       1.85       3.61  
Return After Taxes on Distributions and Sale of Fund Shares
    7.46       1.94       3.48  
 
S&P 500® Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    16.00       1.66       4.96  
 
Custom Conservative Allocation Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    8.65       4.05       5.56  
 
Lipper Mixed-Asset Target Allocation Conservative Funds Index (from 4/30/2005)
    8.92       4.32       5.45  
 
1   Class S 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 April 29, 2005.

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."
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 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.
Class S Prospectus | Invesco Conservative Allocation Fund | Class S shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.27% [2]
5 Years rr_AverageAnnualReturnYear05 3.16% [2]
Since Inception rr_AverageAnnualReturnSinceInception 4.83% [2]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 03, 2011 [2]
Class S Prospectus | Invesco Conservative Allocation Fund | Return After Taxes on Distributions | Class S shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.07% [2]
5 Years rr_AverageAnnualReturnYear05 1.85% [2]
Since Inception rr_AverageAnnualReturnSinceInception 3.61% [2]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 03, 2011 [2]
Class S Prospectus | Invesco Conservative Allocation Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class S shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.46% [2]
5 Years rr_AverageAnnualReturnYear05 1.94% [2]
Since Inception rr_AverageAnnualReturnSinceInception 3.48% [2]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 03, 2011 [2]
Class S Prospectus | Invesco Conservative Allocation Fund | S&P 500® Index (reflects no deduction for fees, expenses or taxes)
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.00%
5 Years rr_AverageAnnualReturnYear05 1.66%
Since Inception rr_AverageAnnualReturnSinceInception 4.96%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2005
Class S Prospectus | Invesco Conservative Allocation Fund | Custom Conservative Allocation Index (reflects no deduction for fees, expenses or taxes)
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.65%
5 Years rr_AverageAnnualReturnYear05 4.05%
Since Inception rr_AverageAnnualReturnSinceInception 5.56%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2005
Class S Prospectus | Invesco Conservative Allocation Fund | Lipper Mixed-Asset Target Allocation Conservative Funds Index
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.92%
5 Years rr_AverageAnnualReturnYear05 4.32%
Since Inception rr_AverageAnnualReturnSinceInception 5.45%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2005
Class R5 Prospectus | Invesco Conservative Allocation Fund
 
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] aimgs_SupplementTextBlock

Statutory Prospectus Supplement dated June 28, 2013

The purpose of this mailing is to provide you with changes to the current Statutory Prospectus for Class R5 and Class R6 shares, as applicable, of the Funds listed below:

Invesco Conservative Allocation Fund

The following information replaces in its entirety the information appearing under the heading "Fund Summaries – INVESCO CONSERVATIVE ALLOCATION FUND – Performance Information – Average Annual Total Returns":

"Average Annual Total Returns (for the periods ended December 31, 2012)
                         
    1   5   Since
    Year   Years   Inception
 
Class R5 shares: Inception (4/29/2005)
                       
Return Before Taxes
    11.56 %     3.40 %     5.08 %
Return After Taxes on Distributions
    10.29       2.02       3.79  
Return After Taxes on Distributions and Sale of Fund Shares
    7.66       2.10       3.66  
 
S&P 500® Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    16.00       1.66       4.96  
 
Custom Conservative Allocation Index (reflects no deduction for fees, expenses or taxes) (from 4/30/2005)
    8.65       4.05       5.56  
 
Lipper Mixed-Asset Target Allocation Conservative Funds Index (from 4/30/2005)
    8.92       4.32       5.45  
 

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."
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 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.
Class R5 Prospectus | Invesco Conservative Allocation Fund | Class R5 shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 11.56%
5 Years rr_AverageAnnualReturnYear05 3.40%
Since Inception rr_AverageAnnualReturnSinceInception 5.08%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 29, 2005
Class R5 Prospectus | Invesco Conservative Allocation Fund | Return After Taxes on Distributions | Class R5 shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.29%
5 Years rr_AverageAnnualReturnYear05 2.02%
Since Inception rr_AverageAnnualReturnSinceInception 3.79%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 29, 2005
Class R5 Prospectus | Invesco Conservative Allocation Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class R5 shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 7.66%
5 Years rr_AverageAnnualReturnYear05 2.10%
Since Inception rr_AverageAnnualReturnSinceInception 3.66%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 29, 2005
Class R5 Prospectus | Invesco Conservative Allocation Fund | S&P 500® Index (reflects no deduction for fees, expenses or taxes)
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.00%
5 Years rr_AverageAnnualReturnYear05 1.66%
Since Inception rr_AverageAnnualReturnSinceInception 4.96%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2005
Class R5 Prospectus | Invesco Conservative Allocation Fund | Custom Conservative Allocation Index (reflects no deduction for fees, expenses or taxes)
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.65%
5 Years rr_AverageAnnualReturnYear05 4.05%
Since Inception rr_AverageAnnualReturnSinceInception 5.56%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2005
Class R5 Prospectus | Invesco Conservative Allocation Fund | Lipper Mixed-Asset Target Allocation Conservative Funds Index
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.92%
5 Years rr_AverageAnnualReturnYear05 4.32%
Since Inception rr_AverageAnnualReturnSinceInception 5.45%
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2005
Class R5 Prospectus | INVESCO Income Allocation Fund
 
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] aimgs_SupplementTextBlock

Statutory Prospectus Supplement dated June 28, 2013

The purpose of this mailing is to provide you with changes to the current Statutory Prospectus for Class R5 and Class R6 shares, as applicable, of the Funds listed below:

Invesco Income Allocation Fund

The following information replaces in its entirety the information appearing under the heading "Fund Summaries – INVESCO INCOME ALLOCATION FUND – Performance Information – Average Annual Total Returns":

"Average Annual Total Returns (for the periods ended December 31, 2012)
                         
    1   5   Since
    Year   Years   Inception
 
Class R5 shares: Inception (10/31/2005)
                       
Return Before Taxes
    12.12 %     4.80 %     5.82 %
Return After Taxes on Distributions
    10.85       3.20       4.18  
Return After Taxes on Distributions and Sale of Fund Shares
    8.06       3.21       4.09  
 
S&P 500® Index (reflects no deduction for fees, expenses or taxes)
    16.00       1.66       4.57  
 
Custom Income Allocation Index (reflects no deduction for fees, expenses or taxes)
    9.68       5.35       6.21  
 
Lipper Mixed-Asset Target Allocation Conservative Funds Index
    8.92       4.32       5.35  
 

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."
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 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.
Class R5 Prospectus | INVESCO Income Allocation Fund | Class R5 shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 12.12%
5 Years rr_AverageAnnualReturnYear05 4.80%
Since Inception rr_AverageAnnualReturnSinceInception 5.82%
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 31, 2005
Class R5 Prospectus | INVESCO Income Allocation Fund | Return After Taxes on Distributions | Class R5 shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 10.85%
5 Years rr_AverageAnnualReturnYear05 3.20%
Since Inception rr_AverageAnnualReturnSinceInception 4.18%
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 31, 2005
Class R5 Prospectus | INVESCO Income Allocation Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class R5 shares:
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.06%
5 Years rr_AverageAnnualReturnYear05 3.21%
Since Inception rr_AverageAnnualReturnSinceInception 4.09%
Inception Date rr_AverageAnnualReturnInceptionDate Oct. 31, 2005
Class R5 Prospectus | INVESCO Income Allocation Fund | S&P 500® Index (reflects no deduction for fees, expenses or taxes)
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 16.00%
5 Years rr_AverageAnnualReturnYear05 1.66%
Since Inception rr_AverageAnnualReturnSinceInception 4.57%
Class R5 Prospectus | INVESCO Income Allocation Fund | Custom Income Allocation Index (reflects no deduction for fees, expenses or taxes)
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 9.68%
5 Years rr_AverageAnnualReturnYear05 5.35%
Since Inception rr_AverageAnnualReturnSinceInception 6.21%
Class R5 Prospectus | INVESCO Income Allocation Fund | Lipper Mixed-Asset Target Allocation Conservative Funds Index
 
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 8.92%
5 Years rr_AverageAnnualReturnYear05 4.32%
Since Inception rr_AverageAnnualReturnSinceInception 5.35%
[1] Class Y 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.
[2] Class S 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 April 29, 2005.