Average Annual Total Returns (Invesco Balanced-Risk Retirement 2020 Fund)	12 Months Ended
	May 02, 2011
Return Before Taxes | Class Institutional, Invesco Balanced-Risk Retirement 2020 Fund
Average Annual Total Returns
Column	Institutional Class: Inception (01/31/07)
Label	Return Before Taxes
1 Year	13.47%
Since Inception	1.00%
Inception Date	Jan. 31, 2007
Return After Taxes on Distributions | Class Institutional, Invesco Balanced-Risk Retirement 2020 Fund
Average Annual Total Returns
Column	Institutional Class: Inception (01/31/07)
Label	Return After Taxes on Distributions
1 Year	11.38%
Since Inception	(0.57%)
Inception Date	Jan. 31, 2007
Return After Taxes on Distributions and Sale of Fund Shares | Class Institutional, Invesco Balanced-Risk Retirement 2020 Fund
Average Annual Total Returns
Column	Institutional Class: Inception (01/31/07)
Label	Return After Taxes on Distributions and Sale of Fund Shares
1 Year	8.73%
Since Inception	(0.05%)
Inception Date	Jan. 31, 2007
S&P 500 Index
Average Annual Total Returns
Label	S&P 500® Index:
Index No Deduction for Fees, Expenses, Taxes [Text]	(reflects no deduction for fees, expenses or taxes)
1 Year	15.08%
Since Inception	(1.22%)
Inception Date	Jan. 31, 2007
Custom Balanced-Risk Allocation Broad Index
Average Annual Total Returns
Label	Custom Balanced-Risk Allocation Broad Index:
Index No Deduction for Fees, Expenses, Taxes [Text]	(reflects no deduction for fees, expenses or taxes)
1 Year	12.14%
Since Inception	2.22%
Inception Date	Jan. 31, 2007
Custom Balanced-Risk Retirement 2020 Index
Average Annual Total Returns
Label	Custom Balanced-Risk Retirement 2020 Index:
Index No Deduction for Fees, Expenses, Taxes [Text]	(reflects no deduction for fees, expenses or taxes)
1 Year	10.23%
Since Inception	1.77%
Inception Date	Jan. 31, 2007
Lipper Mixed-Asset Target 2020 Funds Index
Average Annual Total Returns
Label	Lipper Mixed-Asset Target 2020 Funds Index:
1 Year	12.83%
Since Inception	1.83%
Inception Date	Jan. 31, 2007