Deferred Income Tax Expense Other Expenses Interest Expense Invesco SteelPath MLP Alpha Fund Invesco SteelPath MLP Alpha Plus Fund Invesco SteelPath MLP Income Fund Invesco SteelPath MLP Select 40 Fund Invesco SteelPath MLP Alpha Fund Invesco SteelPath MLP Alpha Plus Fund Invesco SteelPath MLP Income Fund Invesco SteelPath MLP Select 40 Fund Class A Class C Class R Class Y Class R5 Class R6 Class A Class C Class R Class Y Class R5 Class R6 Class A Class C Class R Class Y Class R5 Class R6 Class A Class C Class R Class Y Class R5 Class R6 Market Risk [Member] MLP Risk [Member] Energy Infrastructure and Energy-Related Industries Sector Risk [Member] MLP Common Units Risk [Member] MLP Affiliates Risk [Member] MLP Issuer Risk [Member] Small- and Mid-Capitalization Companies Risk [Member] Borrowing Risk [Member] Deferred Taxes Risk [Member] Distribution Policy Risk [Member] Regulatory Risk [Member] Cash/Cash Equivalents Risk [Member] Investing in Stocks Risk [Member] Issuer Focus Risk [Member] Derivatives Risk [Member] Valuation Risk [Member] Management Risk [Member] Alerian MLP Index (reflects no deduction for fees, expenses or taxes) S&P 500® Index (reflects no deduction for fees, expenses or taxes) Investing In Stocks Risk Member Issuer Focus Risk Member C000209588 Member MLPAffiliates Risk Member Management Risk Member S000064701 Member MLPIssuer Risk Member C000209571 Member C000209581 Member S000064699 Member C000209569 Member C000209579 Member C000209574 Member doc_ Invesco_ Steel Path_ MLP_ Alpha_ Fund Member C000209582 Member Energy Infrastructure And Energy Related Industries Sector Risk Member doc_ Invesco_ Steel Path_ MLP_ Select_40_ Fund Member Derivatives Risk Member Borrowing Risk Member C000209577 Member S000064700 Member MLPCommon Units Risk Member C000209568 Member C000209585 Member C000209570 Member C000209565 Member C000209583 Member MLPRisk Member Distribution Policy Risk Member C000209573 Member C000209567 Member index_ Alerian_ MLP_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member C000209576 Member C000209586 Member C000209566 Member Market Risk Member C000209584 Member C000209572 Member Regulatory Risk Member Valuation Risk Member C000209587 Member Small And Mid Capitalization Companies Risk Member C000209580 Member C000209578 Member Deferred Taxes Risk Member doc_ Invesco_ Steel Path_ MLP_ Alpha_ Plus_ Fund Member S000064698 Member Cash Cash Equivalents Risk Member index_ SP_500_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member doc_ Invesco_ Steel Path_ MLP_ Income_ Fund Member C000209575 Member