Performance Table Narrative

rr_AverageAnnualReturnAbstract

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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.

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.

rr_AverageAnnualReturnAbstract

rr_AverageAnnualReturnLabel

Return Before Taxes

rr_AverageAnnualReturnSinceInception

1.61%

Column

rr_AverageAnnualReturnColumnName

Institutional Class: Inception (01/31/07)

rr_AverageAnnualReturnYear01

6.73%

rr_AverageAnnualReturnInceptionDate

Jan. 31, 2007

rr_AverageAnnualReturnAbstract

rr_AverageAnnualReturnLabel

Return After Taxes on Distributions and Sale of Fund Shares

rr_AverageAnnualReturnSinceInception

0.33%

rr_AverageAnnualReturnLabel

S&P 500^® Index:

rr_AverageAnnualReturnYear01

15.08%

rr_AverageAnnualReturnInceptionDate

Jan. 31, 2007

Index No Deduction for Fees, Expenses, Taxes [Text]

rr_AverageAnnualReturnAbstract

rr_IndexNoDeductionForFeesExpensesTaxes

(reflects no deduction for fees, expenses or taxes)

rr_AverageAnnualReturnSinceInception

2.22%

rr_AverageAnnualReturnLabel

Custom Balanced-Risk Retirement Now Index

rr_AverageAnnualReturnYear01

6.25%

rr_AverageAnnualReturnInceptionDate

Jan. 31, 2007

rr_AverageAnnualReturnAbstract

rr_AverageAnnualReturnYear01

9.99%

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_AverageAnnualReturnInceptionDate

Jan. 31, 2007

Shareholder Fees

rr_ShareholderFeesAbstract

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Annual Fund Operating Expenses

rr_OperatingExpensesAbstract

Management Fees

rr_ManagementFeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.97%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.52%

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.55%

Expense Example, By Year, Column [Text]

rr_ExpenseExampleByYearColumnName

Institutional Class

3 Years

rr_ExpenseExampleYear03

385

10 Years

rr_ExpenseExampleYear10

1,730

'08

rr_AnnualReturn2008

(17.23%)

'10

rr_AnnualReturn2010

8.00%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Mar. 31, 2011

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter:

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

9.85%

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Risk/Return [Heading]

rr_RiskReturnHeading

Fund Summary - INVESCO BALANCED-RISK RETIREMENT 2010 FUND - INSTITUTIONAL

Objective, Primary [Text Block]

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The Fund’s investment objective is to provide total return with a low to moderate correlation to traditional financial market indices,

Fees and Expenses of the Fund

aimgs_FundFeesAndExpensesAbstract

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)

Example

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Expense Example Narrative [Text Block]

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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:

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

103.00%

Strategy Narrative [Text Block]

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The Fund seeks to meet its investment objective by building a portfolio that includes Invesco Balanced-Risk Allocation Fund and two affiliated money market funds, Liquid Assets Portfolio and Premier Portfolio. The Fund will generally rebalance its assets to the Fund’s target allocations on a monthly basis. A list of the underlying funds and their approximate target fund weightings as of April 30, 2011 is set forth below:

	Invesco Balanced-Risk
Underlying Funds	Retirement 2010 Fund
Invesco Balanced-Risk Allocation Fund	61.00%
Liquid Assets Portfolio	19.50%
Premier Portfolio	19.50%
Total	100%

Note: Target Fund weightings are rounded to the nearest hundredths and may not add to 100% due to rounding. See SAI for exact target weightings.

The Fund’s name indicates the approximate date an investor in the Fund plans to retire and may stop making new investments in the Fund. Consistent with the Fund’s real return and capital preservation objectives, the Fund is designed for investors who expect to need all or most of their money in the Fund at retirement and for investors who plan to withdraw the value of their account in the Fund gradually after retirement. Once the asset allocation of the Fund has become similar to the asset allocation of the Invesco Balanced-Risk Retirement Now Fund, the Board of Trustees may approve combining the Fund with Invesco Balanced-Risk Retirement Now Fund if they determine that such a combination is in the best interests of the Fund’s shareholders. Such a combination will result in the shareholders of the Fund owning shares of Invesco Balanced-Risk Retirement Now Fund rather than the Fund. The Adviser expects such a combination to generally occur during the year of the Fund’s target retirement date.

The following chart displays how the Adviser expects the asset allocation for the Fund to change as its target retirement date approaches. The Fund employs a risk-balanced optimization process which accounts for the flat glide path (the glide path is the rate at which the asset mix changes over time) until approximately 10 years from the target retirement date. The glide path will become more conservative on a quarterly basis approximately 10 years from the target retirement date by gradually reducing the allocation to Invesco Balanced-Risk Allocation Fund and increasing the allocation to money market funds. The actual asset allocations for the Funds may differ from those shown in the chart below.


                                      ABRA        Cash
Risk                                  8.00%      0.60%
                                                          2050 Fund
Years   Quarters   2050 Fund Date   $ Weight   $ Weight     Risk

50.00     200       12/31/2000         100%       0%        8.00%
49.75     199        3/31/2001         100%       0%        8.00%
49.50     198        6/30/2001         100%       0%        8.00%
49.25     197        9/30/2001         100%       0%        8.00%
49.00     196       12/31/2001         100%       0%        8.00%
48.75     195        3/31/2002         100%       0%        8.00%
48.50     194        6/30/2002         100%       0%        8.00%
48.25     193        9/30/2002         100%       0%        8.00%
48.00     192       12/31/2002         100%       0%        8.00%
47.75     191        3/31/2003         100%       0%        8.00%
47.50     190        6/30/2003         100%       0%        8.00%
47.25     189        9/30/2003         100%       0%        8.00%
47.00     188       12/31/2003         100%       0%        8.00%
46.75     187        3/31/2004         100%       0%        8.00%
46.50     186        6/30/2004         100%       0%        8.00%
46.25     185        9/30/2004         100%       0%        8.00%
46.00     184       12/31/2004         100%       0%        8.00%
45.75     183        3/31/2005         100%       0%        8.00%
45.50     182        6/30/2005         100%       0%        8.00%
45.25     181        9/30/2005         100%       0%        8.00%
45.00     180       12/31/2005         100%       0%        8.00%
44.75     179        3/31/2006         100%       0%        8.00%
44.50     178        6/30/2006         100%       0%        8.00%
44.25     177        9/30/2006         100%       0%        8.00%
44.00     176       12/31/2006         100%       0%        8.00%
43.75     175        3/31/2007         100%       0%        8.00%
43.50     174        6/30/2007         100%       0%        8.00%
43.25     173        9/30/2007         100%       0%        8.00%
43.00     172       12/31/2007         100%       0%        8.00%
42.75     171        3/31/2008         100%       0%        8.00%
42.50     170        6/30/2008         100%       0%        8.00%
42.25     169        9/30/2008         100%       0%        8.00%
42.00     168       12/31/2008         100%       0%        8.00%
41.75     167        3/31/2009         100%       0%        8.00%
41.50     166        6/30/2009         100%       0%        8.00%
41.25     165        9/30/2009         100%       0%        8.00%
41.00     164       12/31/2009         100%       0%        8.00%
40.75     163        3/31/2010         100%       0%        8.00%
40.50     162        6/30/2010         100%       0%        8.00%
40.25     161        9/30/2010         100%       0%        8.00%
40.00     160       12/31/2010         100%       0%        8.00%
39.75     159        3/31/2011         100%       0%        8.00%
39.50     158        6/30/2011         100%       0%        8.00%
39.25     157        9/30/2011         100%       0%        8.00%
39.00     156       12/31/2011         100%       0%        8.00%
38.75     155        3/31/2012         100%       0%        8.00%
38.50     154        6/30/2012         100%       0%        8.00%
38.25     153        9/30/2012         100%       0%        8.00%
38.00     152       12/31/2012         100%       0%        8.00%
37.75     151        3/31/2013         100%       0%        8.00%
37.50     150        6/30/2013         100%       0%        8.00%
37.25     149        9/30/2013         100%       0%        8.00%
37.00     148       12/31/2013         100%       0%        8.00%
36.75     147        3/31/2014         100%       0%        8.00%
36.50     146        6/30/2014         100%       0%        8.00%
36.25     145        9/30/2014         100%       0%        8.00%
36.00     144       12/31/2014         100%       0%        8.00%
35.75     143        3/31/2015         100%       0%        8.00%
35.50     142        6/30/2015         100%       0%        8.00%
35.25     141        9/30/2015         100%       0%        8.00%
35.00     140       12/31/2015         100%       0%        8.00%
34.75     139        3/31/2016         100%       0%        8.00%
34.50     138        6/30/2016         100%       0%        8.00%
34.25     137        9/30/2016         100%       0%        8.00%
34.00     136       12/31/2016         100%       0%        8.00%
33.75     135        3/31/2017         100%       0%        8.00%
33.50     134        6/30/2017         100%       0%        8.00%
33.25     133        9/30/2017         100%       0%        8.00%
33.00     132       12/31/2017         100%       0%        8.00%
32.75     131        3/31/2018         100%       0%        8.00%
32.50     130        6/30/2018         100%       0%        8.00%
32.25     129        9/30/2018         100%       0%        8.00%
32.00     128       12/31/2018         100%       0%        8.00%
31.75     127        3/31/2019         100%       0%        8.00%
31.50     126        6/30/2019         100%       0%        8.00%
31.25     125        9/30/2019         100%       0%        8.00%
31.00     124       12/31/2019         100%       0%        8.00%
30.75     123        3/31/2020         100%       0%        8.00%
30.50     122        6/30/2020         100%       0%        8.00%
30.25     121        9/30/2020         100%       0%        8.00%
30.00     120       12/31/2020         100%       0%        8.00%
29.75     119        3/31/2021         100%       0%        8.00%
29.50     118        6/30/2021         100%       0%        8.00%
29.25     117        9/30/2021         100%       0%        8.00%
29.00     116       12/31/2021         100%       0%        8.00%
28.75     115        3/31/2022         100%       0%        8.00%
28.50     114        6/30/2022         100%       0%        8.00%
28.25     113        9/30/2022         100%       0%        8.00%
28.00     112       12/31/2022         100%       0%        8.00%
27.75     111        3/31/2023         100%       0%        8.00%
27.50     110        6/30/2023         100%       0%        8.00%
27.25     109        9/30/2023         100%       0%        8.00%
27.00     108       12/31/2023         100%       0%        8.00%
26.75     107        3/31/2024         100%       0%        8.00%
26.50     106        6/30/2024         100%       0%        8.00%
26.25     105        9/30/2024         100%       0%        8.00%
26.00     104       12/31/2024         100%       0%        8.00%
25.75     103        3/31/2025         100%       0%        8.00%
25.50     102        6/30/2025         100%       0%        8.00%
25.25     101        9/30/2025         100%       0%        8.00%
25.00     100       12/31/2025         100%       0%        8.00%
24.75      99        3/31/2026         100%       0%        8.00%
24.50      98        6/30/2026         100%       0%        8.00%
24.25      97        9/30/2026         100%       0%        8.00%
24.00      96       12/31/2026         100%       0%        8.00%
23.75      95        3/31/2027         100%       0%        8.00%
23.50      94        6/30/2027         100%       0%        8.00%
23.25      93        9/30/2027         100%       0%        8.00%
23.00      92       12/31/2027         100%       0%        8.00%
22.75      91        3/31/2028         100%       0%        8.00%
22.50      90        6/30/2028         100%       0%        8.00%
22.25      89        9/30/2028         100%       0%        8.00%
22.00      88       12/31/2028         100%       0%        8.00%
21.75      87        3/31/2029         100%       0%        8.00%
21.50      86        6/30/2029         100%       0%        8.00%
21.25      85        9/30/2029         100%       0%        8.00%
21.00      84       12/31/2029         100%       0%        8.00%
20.75      83        3/31/2030         100%       0%        8.00%
20.50      82        6/30/2030         100%       0%        8.00%
20.25      81        9/30/2030         100%       0%        8.00%
20.00      80       12/31/2030         100%       0%        8.00%
19.75      79        3/31/2031         100%       0%        8.00%
19.50      78        6/30/2031         100%       0%        8.00%
19.25      77        9/30/2031         100%       0%        8.00%
19.00      76       12/31/2031         100%       0%        8.00%
18.75      75        3/31/2032         100%       0%        8.00%
18.50      74        6/30/2032         100%       0%        8.00%
18.25      73        9/30/2032         100%       0%        8.00%
18.00      72       12/31/2032         100%       0%        8.00%
17.75      71        3/31/2033         100%       0%        8.00%
17.50      70        6/30/2033         100%       0%        8.00%
17.25      69        9/30/2033         100%       0%        8.00%
17.00      68       12/31/2033         100%       0%        8.00%
16.75      67        3/31/2034         100%       0%        8.00%
16.50      66        6/30/2034         100%       0%        8.00%
16.25      65        9/30/2034         100%       0%        8.00%
16.00      64       12/31/2034         100%       0%        8.00%
15.75      63        3/31/2035         100%       0%        8.00%
15.50      62        6/30/2035         100%       0%        8.00%
15.25      61        9/30/2035         100%       0%        8.00%
15.00      60       12/31/2035         100%       0%        8.00%
14.75      59        3/31/2036         100%       0%        8.00%
14.50      58        6/30/2036         100%       0%        8.00%
14.25      57        9/30/2036         100%       0%        8.00%
14.00      56       12/31/2036         100%       0%        8.00%
13.75      55        3/31/2037         100%       0%        8.00%
13.50      54        6/30/2037         100%       0%        8.00%
13.25      53        9/30/2037         100%       0%        8.00%
13.00      52       12/31/2037         100%       0%        8.00%
12.75      51        3/31/2038         100%       0%        8.00%
12.50      50        6/30/2038         100%       0%        8.00%
12.25      49        9/30/2038         100%       0%        8.00%
12.00      48       12/31/2038         100%       0%        8.00%
11.75      47        3/31/2039         100%       0%        8.00%
11.50      46        6/30/2039         100%       0%        8.00%
11.25      45        9/30/2039         100%       0%        8.00%
11.00      44       12/31/2039         100%       0%        8.00%
10.75      43        3/31/2040         100%       0%        8.00%
10.50      42        6/30/2040         100%       0%        8.00%
10.25      41        9/30/2040         100%       0%        8.00%
10.00      40       12/31/2040         100%       0%        8.00%
 9.75      39        3/31/2041          99%       1%        7.92%
 9.50      38        6/30/2041          98%       2%        7.84%
 9.25      37        9/30/2041          97%       3%        7.76%
 9.00      36       12/31/2041          96%       4%        7.68%
 8.75      35        3/31/2042          95%       5%        7.60%
 8.50      34        6/30/2042          94%       6%        7.52%
 8.25      33        9/30/2042          93%       7%        7.44%
 8.00      32       12/31/2042          92%       8%        7.36%
 7.75      31        3/31/2043          91%       9%        7.28%
 7.50      30        6/30/2043          90%      10%        7.20%
 7.25      29        9/30/2043          89%      11%        7.12%
 7.00      28       12/31/2043          88%      12%        7.04%
 6.75      27        3/31/2044          87%      13%        6.96%
 6.50      26        6/30/2044          86%      14%        6.88%
 6.25      25        9/30/2044          85%      15%        6.80%
 6.00      24       12/31/2044          84%      16%        6.72%
 5.75      23        3/31/2045          83%      17%        6.64%
 5.50      22        6/30/2045          82%      18%        6.56%
 5.25      21        9/30/2045          81%      19%        6.48%
 5.00      20       12/31/2045          80%      20%        6.40%
 4.75      19        3/31/2046          79%      21%        6.32%
 4.50      18        6/30/2046          78%      22%        6.24%
 4.25      17        9/30/2046          77%      23%        6.16%
 4.00      16       12/31/2046          76%      24%        6.08%
 3.75      15        3/31/2047          75%      25%        6.00%
 3.50      14        6/30/2047          74%      26%        5.92%
 3.25      13        9/30/2047          73%      27%        5.84%
 3.00      12       12/31/2047          72%      28%        5.76%
 2.75      11        3/31/2048          71%      29%        5.68%
 2.50      10        6/30/2048          70%      30%        5.60%
 2.25       9        9/30/2048          69%      31%        5.52%
 2.00       8       12/31/2048          68%      32%        5.44%
 1.75       7        3/31/2049          67%      33%        5.36%
 1.50       6        6/30/2049          66%      34%        5.28%
 1.25       5        9/30/2049          65%      35%        5.20%
 1.00       4       12/31/2049          64%      36%        5.12%
 0.75       3        3/31/2050          63%      37%        5.04%
 0.50       2        6/30/2050          62%      38%        4.97%
 0.25       1        9/30/2050          61%      39%        4.89%
 0.00       0       12/31/2050          60%      40%        4.81%

The following table lists the expected market exposure through Invesco Balanced-Risk Allocation Fund to equities, commodities and fixed income and through Liquid Assets Portfolio and Premier Portfolio to cash equivalents. The portfolio managers actively adjust portfolio positions in Invesco Balanced-Risk Allocation Fund to minimize loss of capital, to benefit from market opportunities and to reduce excess volatility. Due to the use of leverage in the underlying fund, Invesco Balanced-Risk Allocation Fund, the percentages may not equal 100%.

		10-50 Years From Retirement
		Strategic
	Minimum	Allocation	Maximum

Equities	15.8%	29.6%	62.5%
Commodities	13.7%	20.8%	35.6%
Fixed Income	47.8 %	81.6%	136.9%
Cash Equivalents	0.0%	0.0%	0.0%

		5 Years From Retirement
		Strategic
	Minimum	Allocation	Maximum
Equities	12.6%	23.7%	50.0%
Commodities	11.0%	17.4%	28.5%
Fixed Income	38.3%	68.0%	109.5%
Cash Equivalents	20.0%	20.0%	20.0%

		At Retirement Date
		Strategic
	Minimum	Allocation	Maximum
Equities	9.5%	17.8%	37.5%
Commodities	8.2%	13.0%	21.4%
Fixed Income	28.7%	51.0%	82.1%
Cash Equivalents	40.0%	40.0%	40.0%

An investment in the Fund is not guaranteed, and you may experience losses, including near to, at, or after the target date. There is no guarantee that the Fund will provide adequate income at or through your retirement.

Investment Objectives and Strategies of the Underlying Funds

Invesco Balanced-Risk Allocation Fund. Invesco Balanced-Risk Allocation Fund’s investment objective is to provide total return with a low to moderate correlation to traditional financial market indices. Invesco Balanced-Risk Allocation Fund’s investment objective may be changed by the Board of Trustees without shareholder approval.

Invesco Balanced-Risk Allocation Fund invests, under normal conditions, in derivatives and other financially-linked instruments whose performance is expected to correspond to U.S. and international fixed income, equity and commodity markets. Invesco Balanced-Risk Allocation Fund may invest in derivatives and other financially-linked instruments such as futures, swap agreements, including total return swaps and may also invest in U.S. and foreign government debt securities and other securities such as exchange-traded funds (ETFs) and commodity-linked notes. Invesco Balanced-Risk Allocation Fund’s international investments will generally be in developed countries, but may also include emerging market countries. Invesco Balanced-Risk Allocation Fund’s fixed income investments are generally considered to be investment grade while Invesco Balanced-Risk Allocation Fund’s commodity markets exposure will generally be in the precious metals, agriculture, energy and industrial metals sectors. Invesco Balanced-Risk Allocation Fund will also invest in the Subsidiary and ETFs to gain exposure to commodity markets. The Subsidiary, in turn, will invest in futures, exchange-traded notes (ETNs) and other securities and financially-linked instruments. ETNs are senior, unsecured, unsubordinated debt securities whose returns are linked to the performance of a particular market benchmark or strategy, minus applicable fees. ETNs are traded on an exchange (e.g., the New York Stock Exchange) during normal trading hours; however, investors can also hold the ETN until maturity. Invesco Balanced-Risk Allocation Fund will generally maintain 60% of its total assets in cash and cash equivalent instruments including affiliated money market funds. Some of the cash holdings will serve as margin or collateral for the Fund’s obligations under derivative transactions. Invesco Balanced-Risk Allocation Fund’s investments in certain derivatives may create significant leveraged exposure to certain equity, fixed income and commodity markets. Leverage occurs when the investments in derivatives create greater economic exposure than the amount invested. This means that Invesco Balanced-Risk Allocation Fund could lose more than originally invested in the derivative.

The Subsidiary is advised by Invesco and has the same investment objective as Invesco Balanced-Risk Allocation Fund and generally employs the same investment strategy but limits its investments to commodity derivatives, ETNs, cash and cash equivalent instruments, including affiliated money market funds.

The Subsidiary, unlike Invesco Balanced-Risk Allocation Fund, may invest without limitation in commodities, commodity-linked derivatives and other securities, such as ETNs, that may provide leveraged and non-leveraged exposure to commodity markets. The Subsidiary also may hold cash and invest in cash equivalent instruments, including affiliated money market funds, some of which may serve as margin or collateral for the Subsidiary’s derivative positions. The Fund may invest up to 25% of its total assets in the Subsidiary. Invesco Balanced-Risk Allocation Fund will be subject to the risks associated with any investment by the Subsidiary to the extent of Invesco Balanced-Risk Allocation Fund’s investment in the Subsidiary.

Invesco Balanced-Risk Allocation Fund is non-diversified, which means that it can invest a greater percentage of its assets in any one issuer than a diversified fund can.

Relative to traditional balanced portfolios, Invesco Balanced-Risk Allocation Fund will seek to provide greater capital loss protection during down markets. The portfolio’s management team will accomplish this through a three-step investment process.

The first step involves asset selection. The management team selects representative assets to gain exposure to equity, fixed income and commodity markets. The selection process (1) evaluates a particular asset’s theoretical case for long-term excess returns relative to cash; (2) screens the identified assets to meet minimum liquidity criteria; and (3) reviews the expected correlation among the assets and the expected risk for each asset to determine whether the selected assets are likely to improve the expected risk adjusted return of Invesco Balanced-Risk Allocation Fund.

The second step involves portfolio construction. Proprietary estimates for risk and correlation are used by the management team to create a portfolio. The team re-estimates the risk contributed by each asset and re-optimizes the portfolio periodically or when new assets are introduced to Invesco Balanced-Risk Allocation Fund.

The final step involves active positioning. The management team actively adjusts portfolio positions to reflect the near-term market environment, while remaining consistent with the optimized long-term portfolio structure described in step two above. The management team balances these two competing ideas—opportunity for excess return from active positioning and the need to maintain asset class exposure set forth in the optimized portfolio structure—by setting controlled tactical ranges around the long-term asset allocation. The resulting asset allocation is then implemented by investing in derivatives, other financially-linked instruments, U.S. and foreign government debt securities, other securities, cash and cash equivalent instruments, including affiliated money market funds. By using derivatives, Invesco Balanced-Risk Allocation Fund is able to gain greater exposure to assets within each class than would be possible using cash instruments, and thus seeks to balance the amount of risk each asset class contributes to the portfolio.

Liquid Assets Portfolio. Liquid Assets Portfolio’s investment objective is to provide as high a level of current income as is consistent with the preservation of capital and liquidity. Liquid Assets Portfolio’s investment objective may be changed by the Board of Trustees without shareholder approval.

Liquid Assets Portfolio invests in high-quality U.S. dollar-denominated short-term debt obligations, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers’ acceptances, certificates of deposit, and time deposits from U.S. or foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes.

Liquid Assets Portfolio is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. Liquid Assets Portfolio invests in conformity with Securities and Exchange Commission (SEC) rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. Liquid Assets Portfolio maintains a dollar-weighted average portfolio maturity of 60 days or less and a dollar-weighted average life to maturity of 120 days or less.

Liquid Assets Portfolio may invest up to 50% of its total assets in U.S. dollar-denominated foreign securities. Liquid Assets Portfolio may also invest in securities, whether or not considered foreign securities, which carry foreign credit exposure. Liquid Assets Portfolio will limit investments to those securities which are rated within the top rating category by rating agencies, commonly referred to as First Tier Securities, at the time of purchase.

In selecting securities for Liquid Assets Portfolio, the portfolio managers focus on securities that offer favorable prospects for current income consistent with the preservation of capital. The portfolio manager may invest in variable-rate demand notes.

The portfolio managers normally hold portfolio securities to maturity, but may sell a particular security when they deem it advisable, such as when market or credit factors materially change.

Premier Portfolio. Premier Portfolio’s investment objective is a high level of current income consistent with the preservation of capital and the maintenance of liquidity. Premier Portfolio’s investment objective may be changed by the Board of Trustees without shareholder approval.

Premier Portfolio invests primarily in high-quality U.S. dollar-denominated short-term debt obligations, including: (i) securities issued by the U.S. Government or its agencies; (ii) bankers’ acceptances, certificates of deposit, and time deposits from U.S. and foreign banks; (iii) repurchase agreements; (iv) commercial paper; (v) municipal securities; and (vi) master notes.

Premier Portfolio is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. Premier Portfolio invests in conformity with the Securities and Exchange Commission (SEC) rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. Premier Portfolio maintains a dollar-weighted portfolio maturity of 60 days or less and a dollar-weighted average life to maturity of 120 days or less.

Premier Portfolio invests from time to time in U.S. dollar-denominated foreign securities. Premier Portfolio may also invest in securities, whether or not considered foreign securities, which carry foreign credit exposure. Premier Portfolio will limit investments to those securities which are rated within the top rating category by rating agencies, commonly referred to as First Tier Securities, at the time of purchase.

In selecting securities for Premier Portfolio, the portfolio managers focus on securities that offer favorable prospects for current income consistent with the preservation of capital. Premier Portfolio may also invest in variable-rate demand notes.

The portfolio managers normally hold portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change.

Risk [Heading]

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Principal Risks of Investing in the Fund and the Underlying Funds

Risk Lose Money [Text]

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As with any mutual fund investment, loss of money is a risk of investing.

Risk Money Market Fund [Text]

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Money Market Fund Risk. Although the underlying fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the underlying fund. The share price of money market funds can fall below the $1.00 share price. You should not rely on or expect the underlying fund’s adviser or its affiliates to enter into support agreements or take other actions to maintain the underlying fund’s $1.00 share price. The credit quality of the underlying fund’s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the underlying fund’s share price. An underlying fund’s share price can also be negatively affected during periods of high redemption pressures and/or illiquid markets. Further regulation could impact the way the underlying fund is managed, possibly negatively impacting its return. Additionally, the underlying fund’s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities.

Performance Information

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Performance Narrative [Text Block]

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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 benchmark, a 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 Past Does Not Indicate Future [Text]

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The Fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.

Performance Availability Website Address [Text]

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www.invesco.com/us

Bar Chart Closing [Text Block]

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Institutional Class Shares year-to-date (ended March 31, 2011): 0.34%

Best Quarter (ended September 30, 2009): 10.82%

Worst Quarter (ended December 31, 2008): (9.73)%

Caption

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Average Annual Total Returns (for the periods ended December 31, 2010)

Performance Table Uses Highest Federal Rate

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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.

Column

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Institutional Class: Inception (01/31/07)

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7.96%

rr_AverageAnnualReturnInceptionDate

Jan. 31, 2007

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rr_AverageAnnualReturnLabel

Return After Taxes on Distributions

rr_AverageAnnualReturnSinceInception

(0.12%)

Column

rr_AverageAnnualReturnColumnName

Institutional Class: Inception (01/31/07)

rr_AverageAnnualReturnYear01

5.16%

rr_AverageAnnualReturnInceptionDate

Jan. 31, 2007

Index No Deduction for Fees, Expenses, Taxes [Text]

rr_AverageAnnualReturnAbstract

rr_IndexNoDeductionForFeesExpensesTaxes

(reflects no deduction for fees, expenses or taxes)

rr_AverageAnnualReturnSinceInception

(1.22%)

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Custom Balanced-Risk Allocation Broad Index:

rr_AverageAnnualReturnYear01

12.14%

rr_AverageAnnualReturnInceptionDate

Jan. 31, 2007

Index No Deduction for Fees, Expenses, Taxes [Text]

rr_AverageAnnualReturnAbstract

rr_IndexNoDeductionForFeesExpensesTaxes

(reflects no deduction for fees, expenses or taxes)

rr_AverageAnnualReturnSinceInception

2.65%

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Lipper Mixed-Asset Target 2010 Funds Index:

Shareholder Fees Column [Text]

rr_AverageAnnualReturnSinceInception

2.59%

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Class: Institutional

Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)

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none

Operating Expenses Column [Text]

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Class: Institutional

Distribution and/or Service (12b-1) Fees

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none

Acquired Fund Fees and Expenses

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0.55%

Fee Waiver and/or Expense Reimbursement

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0.67%

^[1]

Example

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