Performance Management - Future of Energy Fund	Nov. 30, 2025
Prospectus [Line Items]
Bar Chart and Performance Table [Heading]	<span style="color:#000000;font-family:Times New Roman;font-size:10.02pt;font-weight:bold;text-transform:uppercase;">Fund Performance</span>
Performance Narrative [Text Block]	The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund’s performance from year to year for Class A shares. Because Class F shares are currently not available for purchase, and have therefore not commenced investment operations, no performance information is provided for this share class. The Fund changed its principal investment strategies on March 28, 2024. The performance in the following bar chart and table reflects returns achieved pursuant to different principal investment strategies for periods prior to such change. If the Fund’s current strategies had been in place for the periods prior to such change, results shown may have been different. The table shows how the Fund’s average annual returns compare with the performance of a selected broad-based market index (the “Broad-Based Index”), the MSCI World Index (net), over various time periods. The MSCI World Index-net is a free-float-adjusted index that measures performance of large- and mid-capitalization companies representing developed market countries and is net of dividend withholding taxes. In addition to the Broad-Based Index, the table shows performance of two additional benchmarks. Each additional benchmark is represented by the performance of a benchmark consisting of the Alerian Midstream Energy Select Index (Total Return) through January 31, 2019, the Alerian Midstream Energy Select Canada-Capped Index through October 30, 2020, and a blended benchmark of 70% Alerian Midstream Energy Index, 20% S&P 500 Utilities Index, and 10% S&P 500 Oil & Gas Refining & Marketing Index through March 28, 2024. Following March 28, 2024, one additional benchmark (the “Linked Benchmark”) is represented by the performance of the S&P Energy Select Sector Index and the other additional benchmark (the “Custom Linked Benchmark”) is represented by the performance of the Cohen & Steers Energy Aggregate Blend Price Index, which is a blended benchmark consisting of 35% S&P Energy Select Sector Index, 35% Cohen & Steers Risk Parity Energy Index (Custom) and 30% S&P North American and Europe Clean Energy Index-net. The Alerian Midstream Energy Select Index (Total Return) is a capped, float adjusted, capitalization-weighted index composite of North American energy infrastructure companies, whose constituents are engaged in midstream activities involving energy commodities. The Alerian Midstream Energy Select Canada-Capped Index is a composite of North American energy infrastructure companies. The capped, float-adjusted, capitalized-weighted index, which includes the same companies as the Alerian Midstream Energy Select Index (Total Return) but caps the aggregate weight of Canadian constituents at 20%, is disseminated end-of-day on a price-return and total-return basis. The Alerian Midstream Energy Index is a broad-based composite of North American energy infrastructure companies. The capped, float-adjusted, capitalization-weighted index, whose constituents are engaged in midstream activities involving energy commodities, is disseminated real-time on a price return basis and on a total return basis. The S&P 500 Utilities Index comprises those companies included in the S&P 500 that are classified as members of the Global Industry Classification Standard (GICS) utilities sector. The S&P 500 Oil & Gas Refining & Marketing Index is a subset of the S&P 500 Index that includes companies engaged in the refining and marketing of oil, gas and/or refined products. The S&P Energy Select Sector Index is a modified market cap index comprised of energy-related companies within the S&P 500, as defined by the GICS energy sector classification. The Cohen & Steers Risk Parity Energy Index (Custom) is based on the S&P Energy Select Sector Index with weights based on volatility contribution of the underlying GICS industries. The S&P North American and Europe Clean Energy Index-net is designed to measure the performance of 100 of the largest companies in global clean energy-related businesses from North America and Europe. The Advisor believes that the Linked Benchmark and the Custom Linked Benchmark, as compared to the Broad-Based Index, are comprised of securities that are more representative of the Fund’s investment strategy during those periods.Past performance (both before and after taxes) is not, however, an indication as to how the Fund may perform in the future. Updated performance information, including the Fund’s NAV per share, is available at www.cohenandsteers.com or by calling (800) 330-7348. The bar chart does not reflect the deduction of sales charges imposed on Class A shares; if these amounts were reflected, returns would be less than those shown. Absent any applicable fee waivers and/or expense limitation, performance would have been lower. The table following the bar chart reflects applicable sales charges, if any.
Performance Past Does Not Indicate Future [Text]	<span style="font-family:Times New Roman;font-size:11.02pt;">Past performance (both before </span><span style="font-family:Times New Roman;font-size:11.02pt;">and after taxes) is not, however, an indication as to how the Fund may perform in the future.</span>
Performance Information Illustrates Variability of Returns [Text]	<span style="font-family:Times New Roman;font-size:11.02pt;">The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund’s performance from year to year for Class A shares. </span><span style="font-family:Times New Roman;font-size:11.02pt;">Because Class F </span><span style="font-family:Times New Roman;font-size:11.02pt;">shares are currently not available for purchase, and have therefore not commenced investment operations, no performance information is provided for this share class.</span><span style="font-family:Times New Roman;font-size:11.02pt;"> The Fund changed its </span><span style="font-family:Times New Roman;font-size:11.02pt;">principal investment strategies on March 28, 2024. The performance in the following bar chart and table reflects returns achieved pursuant to different principal investment strategies for periods prior to such change. If the Fund’s current strategies had been in place for the periods prior to such change, results shown may have been different. The table shows how the Fund’s average annual returns compare with the performance of a selected broad-based market index (the “Broad-Based Index”), the MSCI World Index (net), over various time periods.</span>
Performance One Year or Less [Text]	<span style="font-family:Times New Roman;font-size:11.02pt;">Because Class F </span><span style="font-family:Times New Roman;font-size:11.02pt;">shares are currently not available for purchase, and have therefore not commenced investment operations, no performance information is provided for this share class.</span>
Performance Additional Market Index [Text]	<span style="font-family:Times New Roman;font-size:11.02pt;">In addition to the </span><span style="font-family:Times New Roman;font-size:11.02pt;">Broad-Based Index, the table shows performance of two additional benchmarks. Each additional benchmark is represented by the performance of a benchmark consisting of the Alerian Midstream Energy Select Index (Total Return) through January 31, 2019, the Alerian Midstream Energy Select Canada-Capped Index through October 30, 2020, and a blended benchmark of 70% Alerian Midstream Energy Index, 20% S&P 500 Utilities Index, and 10% S&P 500 Oil & Gas Refining & Marketing Index through March 28, 2024. Following March 28, 2024, one additional benchmark (the “Linked Benchmark”) is represented by the performance of the S&P Energy Select Sector Index and the other </span><span style="font-family:Times New Roman;font-size:11.02pt;">additional benchmark (the “Custom Linked Benchmark”) is represented by the performance of the Cohen & Steers Energy Aggregate Blend Price Index, which is a blended benchmark consisting of 35% S&P Energy Select Sector Index, 35% Cohen & Steers Risk Parity Energy Index (Custom) and 30% S&P North American and Europe Clean Energy Index-net. The Alerian Midstream Energy Select Index (Total Return) is a capped, float adjusted, capitalization-weighted index composite of North American energy infrastructure companies, whose constituents are engaged in midstream activities involving energy commodities. The Alerian Midstream Energy Select Canada-Capped Index is a composite of North American energy infrastructure companies. The capped, float-adjusted, capitalized-weighted index, which includes the same companies as the Alerian Midstream Energy Select Index (Total Return) but caps the aggregate weight of Canadian constituents at 20%, is disseminated end-of-day on a price-return and total-return basis. The Alerian Midstream Energy Index is a broad-based composite of North American energy infrastructure companies. The capped, float-adjusted, capitalization-weighted index, whose constituents are engaged in midstream activities involving energy commodities, is disseminated real-time on a price return basis and on a total return basis. The S&P 500 Utilities Index comprises those companies included in the S&P 500 that are classified as members of the Global Industry Classification Standard (GICS) utilities sector. The S&P 500 Oil & Gas Refining & Marketing Index is a subset of the S&P 500 Index that includes companies engaged in the refining and marketing of oil, gas and/or refined products. The S&P Energy Select Sector Index is a modified market cap index comprised of energy-related companies within the S&P 500, as defined by the GICS energy sector classification. The Cohen & Steers Risk Parity Energy Index (Custom) is based on the S&P Energy Select Sector Index with weights based on volatility contribution of the underlying GICS industries. The S&P North American and Europe Clean Energy Index-net is designed to measure the performance of 100 of the largest companies in global clean energy-related businesses from North America and Europe. The Advisor believes that the Linked Benchmark and the Custom Linked Benchmark, as compared to the Broad-Based Index, are comprised of securities that are more representative of the Fund’s investment strategy during those periods.</span>
Bar Chart Does Not Reflect Sales Loads [Text]	<span style="color:#000000;font-family:Times New Roman;font-size:11.02pt;">The bar chart does not reflect the deduction of sales charges imposed on Class A shares; if these amounts were reflected, returns would be less than those shown.</span>
Bar Chart [Heading]	<span style="color:#000000;font-family:Times New Roman;font-size:11.2pt;font-weight:bold;">Class A Shares</span> <br/><span style="color:#000000;font-family:Times New Roman;font-size:11.2pt;font-weight:bold;">Annual Total Returns</span><span style="color:#000000;font-family:Times New Roman;font-size:7pt;font-weight:bold;position:relative;top:-4.75pt;">(1)</span>
Bar Chart Closing [Text Block]	Highest quarterly return during this period:37.24%quarter endedJune 30, 2020Lowest quarterly return during this period:-50.69%quarter endedMarch 31, 2020Class A shares year-to-date return was18.82%as ofFebruary 27, 2026
Performance Table Heading	<span style="color:#000000;font-family:Times New Roman;font-size:11.2pt;font-weight:bold;">Average Annual Total Returns </span><span style="font-family:Times New Roman;font-size:8.02pt;">(for the periods ended December 31, 2025)</span>
Performance Table Narrative	After-tax returns are shown for Class A shares only. After-tax returns for Class C, I, R and Z shares will vary. Class F shares are currently not available for purchase. Class R and Z shares are available on a limited basis. 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 the investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-advantaged arrangements such as 401(k) plans or individual retirement accounts.
Performance Table Uses Highest Federal Rate	<span style="font-family:Times New Roman;font-size:11.02pt;"> 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.</span>
Performance Table Not Relevant to Tax Deferred	<span style="font-family:Times New Roman;font-size:11.02pt;"> Actual after-tax returns depend </span><span style="font-family:Times New Roman;font-size:11.02pt;">on the investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-advantaged arrangements such as 401(k) plans or individual retirement accounts.</span>
Performance Table One Class of after Tax Shown [Text]	<span style="font-family:Times New Roman;font-size:11.02pt;">After-tax returns are shown for Class A shares only. After-tax returns for Class C, I, R and Z shares will vary. </span><span style="font-family:Times New Roman;font-size:11.02pt;font-weight:bold;">Class F shares are currently not available for purchase. Class R and Z shares are available on a limited basis.</span>
Performance Availability Website Address [Text]	<span style="font-family:Times New Roman;font-size:11.02pt;">www.cohenandsteers.com</span>
Performance Availability Phone [Text]	<span style="font-family:Times New Roman;font-size:11.02pt;">(800) 330-7348</span>
A
Prospectus [Line Items]
Year to Date Return, Label [Optional Text]	<span style="font-family:Times New Roman;font-size:11.02pt;margin-left:0.0pt;">Class A shares year-to-date return was</span>
Bar Chart, Year to Date Return	18.82%
Bar Chart, Year to Date Return, Date	Feb. 27, 2026
Highest Quarterly Return, Label [Optional Text]	<span style="color:#000000;font-family:Times New Roman;font-size:11.02pt;margin-left:0.0pt;">Highest quarterly return during this period:</span>
Highest Quarterly Return	37.24%
Highest Quarterly Return, Date	Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text]	<span style="color:#000000;font-family:Times New Roman;font-size:11.02pt;margin-left:0.0pt;">Lowest quarterly return during this period:</span>
Lowest Quarterly Return	(50.69%)
Lowest Quarterly Return, Date	Mar. 31, 2020

Performance Management - Future of Energy Fund

Nov. 30, 2025

Bar Chart and Performance Table [Heading]

Fund Performance

Performance Narrative [Text Block]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund’s performance from year to year for Class A shares. Because Class F shares are currently not available for purchase, and have therefore not commenced investment operations, no performance information is provided for this share class. The Fund changed its principal investment strategies on March 28, 2024. The performance in the following bar chart and table reflects returns achieved pursuant to different principal investment strategies for periods prior to such change. If the Fund’s current strategies had been in place for the periods prior to such change, results shown may have been different. The table shows how the Fund’s average annual returns compare with the performance of a selected broad-based market index (the “Broad-Based Index”), the MSCI World Index (net), over various time periods. The MSCI World Index-net is a free-float-adjusted index that measures performance of large- and mid-capitalization companies representing developed market countries and is net of dividend withholding taxes. In addition to the Broad-Based Index, the table shows performance of two additional benchmarks. Each additional benchmark is represented by the performance of a benchmark consisting of the Alerian Midstream Energy Select Index (Total Return) through January 31, 2019, the Alerian Midstream Energy Select Canada-Capped Index through October 30, 2020, and a blended benchmark of 70% Alerian Midstream Energy Index, 20% S&P 500 Utilities Index, and 10% S&P 500 Oil & Gas Refining & Marketing Index through March 28, 2024. Following March 28, 2024, one additional benchmark (the “Linked Benchmark”) is represented by the performance of the S&P Energy Select Sector Index and the other additional benchmark (the “Custom Linked Benchmark”) is represented by the performance of the Cohen & Steers Energy Aggregate Blend Price Index, which is a blended benchmark consisting of 35% S&P Energy Select Sector Index, 35% Cohen & Steers Risk Parity Energy Index (Custom) and 30% S&P North American and Europe Clean Energy Index-net. The Alerian Midstream Energy Select Index (Total Return) is a capped, float adjusted, capitalization-weighted index composite of North American energy infrastructure companies, whose constituents are engaged in midstream activities involving energy commodities. The Alerian Midstream Energy Select Canada-Capped Index is a composite of North American energy infrastructure companies. The capped, float-adjusted, capitalized-weighted index, which includes the same companies as the Alerian Midstream Energy Select Index (Total Return) but caps the aggregate weight of Canadian constituents at 20%, is disseminated end-of-day on a price-return and total-return basis. The Alerian Midstream Energy Index is a broad-based composite of North American energy infrastructure companies. The capped, float-adjusted, capitalization-weighted index, whose constituents are engaged in midstream activities involving energy commodities, is disseminated real-time on a price return basis and on a total return basis. The S&P 500 Utilities Index comprises those companies included in the S&P 500 that are classified as members of the Global Industry Classification Standard (GICS) utilities sector. The S&P 500 Oil & Gas Refining & Marketing Index is a subset of the S&P 500 Index that includes companies engaged in the refining and marketing of oil, gas and/or refined products. The S&P Energy Select Sector Index is a modified market cap index comprised of energy-related companies within the S&P 500, as defined by the GICS energy sector classification. The Cohen & Steers Risk Parity Energy Index (Custom) is based on the S&P Energy Select Sector Index with weights based on volatility contribution of the underlying GICS industries. The S&P North American and Europe Clean Energy Index-net is designed to measure the performance of 100 of the largest companies in global clean energy-related businesses from North America and Europe. The Advisor believes that the Linked Benchmark and the Custom Linked Benchmark, as compared to the Broad-Based Index, are comprised of securities that are more representative of the Fund’s investment strategy during those periods.Past performance (both before and after taxes) is not, however, an indication as to how the Fund may perform in the future. Updated performance information, including the Fund’s NAV per share, is available at www.cohenandsteers.com or by calling (800) 330-7348. The bar chart does not reflect the deduction of sales charges imposed on Class A shares; if these amounts were reflected, returns would be less than those shown. Absent any applicable fee waivers and/or expense limitation, performance would have been lower. The table following the bar chart reflects applicable sales charges, if any.

Performance Past Does Not Indicate Future [Text]

Past performance (both before and after taxes) is not, however, an indication as to how the Fund may perform in the future.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund’s performance from year to year for Class A shares. Because Class F shares are currently not available for purchase, and have therefore not commenced investment operations, no performance information is provided for this share class. The Fund changed its principal investment strategies on March 28, 2024. The performance in the following bar chart and table reflects returns achieved pursuant to different principal investment strategies for periods prior to such change. If the Fund’s current strategies had been in place for the periods prior to such change, results shown may have been different. The table shows how the Fund’s average annual returns compare with the performance of a selected broad-based market index (the “Broad-Based Index”), the MSCI World Index (net), over various time periods.

Performance One Year or Less [Text]

Because Class F shares are currently not available for purchase, and have therefore not commenced investment operations, no performance information is provided for this share class.

Performance Additional Market Index [Text]

In addition to the Broad-Based Index, the table shows performance of two additional benchmarks. Each additional benchmark is represented by the performance of a benchmark consisting of the Alerian Midstream Energy Select Index (Total Return) through January 31, 2019, the Alerian Midstream Energy Select Canada-Capped Index through October 30, 2020, and a blended benchmark of 70% Alerian Midstream Energy Index, 20% S&P 500 Utilities Index, and 10% S&P 500 Oil & Gas Refining & Marketing Index through March 28, 2024. Following March 28, 2024, one additional benchmark (the “Linked Benchmark”) is represented by the performance of the S&P Energy Select Sector Index and the other additional benchmark (the “Custom Linked Benchmark”) is represented by the performance of the Cohen & Steers Energy Aggregate Blend Price Index, which is a blended benchmark consisting of 35% S&P Energy Select Sector Index, 35% Cohen & Steers Risk Parity Energy Index (Custom) and 30% S&P North American and Europe Clean Energy Index-net. The Alerian Midstream Energy Select Index (Total Return) is a capped, float adjusted, capitalization-weighted index composite of North American energy infrastructure companies, whose constituents are engaged in midstream activities involving energy commodities. The Alerian Midstream Energy Select Canada-Capped Index is a composite of North American energy infrastructure companies. The capped, float-adjusted, capitalized-weighted index, which includes the same companies as the Alerian Midstream Energy Select Index (Total Return) but caps the aggregate weight of Canadian constituents at 20%, is disseminated end-of-day on a price-return and total-return basis. The Alerian Midstream Energy Index is a broad-based composite of North American energy infrastructure companies. The capped, float-adjusted, capitalization-weighted index, whose constituents are engaged in midstream activities involving energy commodities, is disseminated real-time on a price return basis and on a total return basis. The S&P 500 Utilities Index comprises those companies included in the S&P 500 that are classified as members of the Global Industry Classification Standard (GICS) utilities sector. The S&P 500 Oil & Gas Refining & Marketing Index is a subset of the S&P 500 Index that includes companies engaged in the refining and marketing of oil, gas and/or refined products. The S&P Energy Select Sector Index is a modified market cap index comprised of energy-related companies within the S&P 500, as defined by the GICS energy sector classification. The Cohen & Steers Risk Parity Energy Index (Custom) is based on the S&P Energy Select Sector Index with weights based on volatility contribution of the underlying GICS industries. The S&P North American and Europe Clean Energy Index-net is designed to measure the performance of 100 of the largest companies in global clean energy-related businesses from North America and Europe. The Advisor believes that the Linked Benchmark and the Custom Linked Benchmark, as compared to the Broad-Based Index, are comprised of securities that are more representative of the Fund’s investment strategy during those periods.

Bar Chart Does Not Reflect Sales Loads [Text]

The bar chart does not reflect the deduction of sales charges imposed on Class A shares; if these amounts were reflected, returns would be less than those shown.

Bar Chart [Heading]

Class A Shares Annual Total Returns(1)

Bar Chart Closing [Text Block]

Highest quarterly return during this period:37.24%quarter endedJune 30, 2020Lowest quarterly return during this period:-50.69%quarter endedMarch 31, 2020Class A shares year-to-date return was18.82%as ofFebruary 27, 2026

Performance Table Heading

Average Annual Total Returns (for the periods ended December 31, 2025)

Performance Table Narrative

After-tax returns are shown for Class A shares only. After-tax returns for Class C, I, R and Z shares will vary. Class F shares are currently not available for purchase. Class R and Z shares are available on a limited basis. 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 the investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-advantaged arrangements such as 401(k) plans or individual retirement accounts.

Performance Table Uses Highest Federal Rate

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

Actual after-tax returns depend on the investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-advantaged arrangements such as 401(k) plans or individual retirement accounts.

Performance Table One Class of after Tax Shown [Text]

After-tax returns are shown for Class A shares only. After-tax returns for Class C, I, R and Z shares will vary. Class F shares are currently not available for purchase. Class R and Z shares are available on a limited basis.

Performance Availability Website Address [Text]

www.cohenandsteers.com

Performance Availability Phone [Text]

(800) 330-7348

Prospectus [Line Items]

Year to Date Return, Label [Optional Text]

Class A shares year-to-date return was

Bar Chart, Year to Date Return

18.82%

Bar Chart, Year to Date Return, Date

Feb. 27, 2026

Highest Quarterly Return, Label [Optional Text]