| Form N-CSR Cover | 6 Months Ended |
| Jun. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | COHEN & STEERS GLOBAL INFRASTRUCTURE FUND INC |
| Entity Central Index Key | 0001276070 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| Shareholder Report | 6 Months Ended |
| Jun. 30, 2024 USD ($) shares | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | COHEN & STEERS GLOBAL INFRASTRUCTURE FUND INC |
| Entity Central Index Key | 0001276070 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| Class A | |
| Shareholder Report [Line Items] | |
| Fund Name | Cohen & Steers Global Infrastructure Fund, Inc. |
| Class Name | Class A |
| Trading Symbol | CSUAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund, by scanning the QR code or visiting www.cohenandsteers.com/fund-literature 1-800-330-7348 |
| Additional Information Phone Number | 1-800-330-7348 |
| Additional Information Website | www.cohenandsteers.com/fund-literature |
| Expenses [Text Block] | What were the Fund costs for last six months? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $61.80 1.22% |
| Expenses Paid, Amount | $ 61.80 |
| Expense Ratio, Percent | 1.22% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the last six months and what affected its performance? The share class had a 3.74% total return in the six months ended June 30, 2024, compared with the Linked Index, 1 Security selection and an overweight allocation to marine ports contributed to relative performance in the period. An overweight investment in Santos Brasil positively contributed on better-than-expected results as the company is benefiting from an ongoing shortage in container terminal capacity in Brazil. Also in the sector, an out-of-benchmark investment in JSW Infrastructure positively contributed, on speculation that India would privatize port operations, with JSW being a key beneficiary of the policy change. Security selection and an overweight in midstream energy also contributed to relative performance, in part due to an overweight in Targa Resources, which outperformed amid continued strong natural gas liquids volumes in the Permian Basin. Security selection in electric utilities further aided relative returns. This included an overweight in Public Service Enterprise Group, which rose on investor excitement around the potential for the company to benefit from the increased electricity demand from data center customers. An out-of-index position in NTPC also positively contributed; largely due to continued strong power demand in India. An overweight allocation in the communications sector detracted from relative performance. Tower companies performed poorly due to higher interest rates and a slowdown in leasing activity. Security selection in airports also detracted from relative performance, led by an out-of-benchmark investment in Japan Airport Terminal Company, which declined due to both disappointing passenger traffic and more severe cost pressures than expected. There were no other detractors at the sector level in the period. The currency impact of the Fund's investments in foreign securities detracted from absolute performance during the period, as, overall, foreign currencies depreciated against the dollar. Top contributors Top detractors Marine Ports Communications Electric Airports Midstream |
| Performance Past Does Not Indicate Future [Text] | Data quoted represents past performance, which is no guarantee of future results. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average annual total returns (%)* 1 Year 5 Years 10 Years With sales charge 2 0.46% 3.09% 4.08% Without sales charge 5.20% 4.05% 4.56% Linked Index 1 4.34% 3.06% 4.74% S&P 500 Index 24.56% 15.04% 12.86% MSCI World Index - net 20.19% 11.77% 9.16% |
| Net Assets | $ 764,611,810 |
| Holdings Count | shares | 58 |
| Investment Company, Portfolio Turnover | 57% |
| Additional Fund Statistics [Text Block] | Key fund statistics (as of June 30, 2024) Net assets $764,611,810 Number of portfolio holdings (excluding derivatives) 58 Portfolio turnover rate 57% |
| Holdings [Text Block] | Portfolio holdings (as of June 30, 2024) Top ten holdings 3,4 (%) NextEra Energy, Inc. 6.8% American Tower Corp. 5.2% Duke Energy Corp. 4.0% TC Energy Corp. 4.0% NiSource, Inc. 3.8% Cheniere Energy, Inc. 3.4% Public Service Enterprise Group, Inc. 3.3% PG&E Corp. 3.2% PPL Corp. 3.0% Pembina Pipeline Corp. 2.9% Sector diversification 3,5 (%) Electric 37.1% Midstream 14.1% Gas Distribution 11.5% Communications 8.8% Marine Ports 8.0% Airports 7.3% Railways 6.4% Toll Roads 3.1% Water 1.1% Other (includes short-term investments) 2.6% Country diversification 3,5 (%) United States 57.8% Canada 7.4% Australia 4.6% India 3.7% Japan 3.3% United Kingdom 3.0% Spain 2.8% China 2.6% Mexico 2.6% Other (includes short-term investments) 12.2% |
| Largest Holdings [Text Block] | Top ten holdings 3,4 (%) NextEra Energy, Inc. 6.8% American Tower Corp. 5.2% Duke Energy Corp. 4.0% TC Energy Corp. 4.0% NiSource, Inc. 3.8% Cheniere Energy, Inc. 3.4% Public Service Enterprise Group, Inc. 3.3% PG&E Corp. 3.2% PPL Corp. 3.0% Pembina Pipeline Corp. 2.9% |
| Material Fund Change [Text Block] | Material Fund changes There have been no material changes to the Fund since the beginning of the reporting period that are required to be disclosed in this report. For more complete information about other changes to the Fund, you may review the Fund's current prospectus, which is available upon request by calling 1-800-330-7348 or visiting www.cohenandsteers.com/fund-literature. |
| Class C | |
| Shareholder Report [Line Items] | |
| Fund Name | Cohen & Steers Global Infrastructure Fund, Inc. |
| Class Name | Class C |
| Trading Symbol | CSUCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund, by scanning the QR code or visiting www.cohenandsteers.com/fund-literature 1-800-330-7348 |
| Additional Information Phone Number | 1-800-330-7348 |
| Additional Information Website | www.cohenandsteers.com/fund-literature |
| Expenses [Text Block] | What were the Fund costs for last six months? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $94.58 1.87% |
| Expenses Paid, Amount | $ 94.58 |
| Expense Ratio, Percent | 1.87% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the last six months and what affected its performance? The share class had a 3.43% total return in the six months ended June 30, 2024, compared with the Linked Index, 1 Security selection and an overweight allocation to marine ports contributed to relative performance in the period. An overweight investment in Santos Brasil positively contributed on better-than-expected results as the company is benefiting from an ongoing shortage in container terminal capacity in Brazil. Also in the sector, an out-of-benchmark investment in JSW Infrastructure positively contributed, on speculation that India would privatize port operations, with JSW being a key beneficiary of the policy change. Security selection and an overweight in midstream energy also contributed to relative performance, in part due to an overweight in Targa Resources, which outperformed amid continued strong natural gas liquids volumes in the Permian Basin. Security selection in electric utilities further aided relative returns. This included an overweight in Public Service Enterprise Group, which rose on investor excitement around the potential for the company to benefit from the increased electricity demand from data center customers. An out-of-index position in NTPC also positively contributed; largely due to continued strong power demand in India. An overweight allocation in the communications sector detracted from relative performance. Tower companies performed poorly due to higher interest rates and a slowdown in leasing activity. Security selection in airports also detracted from relative performance, led by an out-of-benchmark investment in Japan Airport Terminal Company, which declined due to both disappointing passenger traffic and more severe cost pressures than expected. There were no other detractors at the sector level in the period. The currency impact of the Fund's investments in foreign securities detracted from absolute performance during the period, as, overall, foreign currencies depreciated against the dollar. Top contributors Top detractors Marine Ports Communications Electric Airports Midstream |
| Performance Past Does Not Indicate Future [Text] | Data quoted represents past performance, which is no guarantee of future results. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average annual total returns (%)* 1 Year 5 Years 10 Years With sales charge 3.48% 2 3.37% 3.88% Without sales charge 4.48% 3.37% 3.88% Linked Index 1 4.34% 3.06% 4.74% S&P 500 Index 24.56% 15.04% 12.86% MSCI World Index - net 20.19% 11.77% 9.16% |
| Net Assets | $ 764,611,810 |
| Holdings Count | shares | 58 |
| Investment Company, Portfolio Turnover | 57% |
| Additional Fund Statistics [Text Block] | Key fund statistics (as of June 30, 2024) Net assets $764,611,810 Number of portfolio holdings (excluding derivatives) 58 Portfolio turnover rate 57% |
| Holdings [Text Block] | Portfolio holdings (as of June 30, 2024) Top ten holdings 3,4 (%) NextEra Energy, Inc. 6.8% American Tower Corp. 5.2% Duke Energy Corp. 4.0% TC Energy Corp. 4.0% NiSource, Inc. 3.8% Cheniere Energy, Inc. 3.4% Public Service Enterprise Group, Inc. 3.3% PG&E Corp. 3.2% PPL Corp. 3.0% Pembina Pipeline Corp. 2.9% Sector diversification 3,5 (%) Electric 37.1% Midstream 14.1% Gas Distribution 11.5% Communications 8.8% Marine Ports 8.0% Airports 7.3% Railways 6.4% Toll Roads 3.1% Water 1.1% Other (includes short-term investments) 2.6% Country diversification 3,5 (%) United States 57.8% Canada 7.4% Australia 4.6% India 3.7% Japan 3.3% United Kingdom 3.0% Spain 2.8% China 2.6% Mexico 2.6% Other (includes short-term investments) 12.2% |
| Largest Holdings [Text Block] | Top ten holdings 3,4 (%) NextEra Energy, Inc. 6.8% American Tower Corp. 5.2% Duke Energy Corp. 4.0% TC Energy Corp. 4.0% NiSource, Inc. 3.8% Cheniere Energy, Inc. 3.4% Public Service Enterprise Group, Inc. 3.3% PG&E Corp. 3.2% PPL Corp. 3.0% Pembina Pipeline Corp. 2.9% |
| Material Fund Change [Text Block] | Material Fund changes There have been no material changes to the Fund since the beginning of the reporting period that are required to be disclosed in this report. For more complete information about other changes to the Fund, you may review the Fund's current prospectus, which is available upon request by calling 1-800-330-7348 or visiting www.cohenandsteers.com/fund-literature. |
| Class I | |
| Shareholder Report [Line Items] | |
| Fund Name | Cohen & Steers Global Infrastructure Fund, Inc. |
| Class Name | Class I |
| Trading Symbol | CSUIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund, by scanning the QR code or visiting www.cohenandsteers.com/fund-literature 1-800-330-7348 |
| Additional Information Phone Number | 1-800-330-7348 |
| Additional Information Website | www.cohenandsteers.com/fund-literature |
| Expenses [Text Block] | What were the Fund costs for last six months? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $44.12 0.87% |
| Expenses Paid, Amount | $ 44.12 |
| Expense Ratio, Percent | 0.87% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the last six months and what affected its performance? The share class had a 3.96% total return in the six months ended June 30, 2024, compared with the Linked Index, 1 Security selection and an overweight allocation to marine ports contributed to relative performance in the period. An overweight investment in Santos Brasil positively contributed on better-than-expected results as the company is benefiting from an ongoing shortage in container terminal capacity in Brazil. Also in the sector, an out-of-benchmark investment in JSW Infrastructure positively contributed, on speculation that India would privatize port operations, with JSW being a key beneficiary of the policy change. Security selection and an overweight in midstream energy also contributed to relative performance, in part due to an overweight in Targa Resources, which outperformed amid continued strong natural gas liquids volumes in the Permian Basin. Security selection in electric utilities further aided relative returns. This included an overweight in Public Service Enterprise Group, which rose on investor excitement around the potential for the company to benefit from the increased electricity demand from data center customers. An out-of-index position in NTPC also positively contributed; largely due to continued strong power demand in India. An overweight allocation in the communications sector detracted from relative performance. Tower companies performed poorly due to higher interest rates and a slowdown in leasing activity. Security selection in airports also detracted from relative performance, led by an out-of-benchmark investment in Japan Airport Terminal Company, which declined due to both disappointing passenger traffic and more severe cost pressures than expected. There were no other detractors at the sector level in the period. The currency impact of the Fund's investments in foreign securities detracted from absolute performance during the period, as, overall, foreign currencies depreciated against the dollar. Top contributors Top detractors Marine Ports Communications Electric Airports Midstream |
| Performance Past Does Not Indicate Future [Text] | Data quoted represents past performance, which is no guarantee of future results. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average annual total returns (%)* 1 Year 5 Years 10 Years Class I 2 5.55% 4.41% 4.90% Linked Index 1 4.34% 3.06% 4.74% S&P 500 Index 24.56% 15.04% 12.86% MSCI World Index - net 20.19% 11.77% 9.16% |
| Net Assets | $ 764,611,810 |
| Holdings Count | shares | 58 |
| Investment Company, Portfolio Turnover | 57% |
| Additional Fund Statistics [Text Block] | Key fund statistics (as of June 30, 2024) Net assets $764,611,810 Number of portfolio holdings (excluding derivatives) 58 Portfolio turnover rate 57% |
| Holdings [Text Block] | Portfolio holdings (as of June 30, 2024) Top ten holdings 3,4 (%) NextEra Energy, Inc. 6.8% American Tower Corp. 5.2% Duke Energy Corp. 4.0% TC Energy Corp. 4.0% NiSource, Inc. 3.8% Cheniere Energy, Inc. 3.4% Public Service Enterprise Group, Inc. 3.3% PG&E Corp. 3.2% PPL Corp. 3.0% Pembina Pipeline Corp. 2.9% Sector diversification 3,5 (%) Electric 37.1% Midstream 14.1% Gas Distribution 11.5% Communications 8.8% Marine Ports 8.0% Airports 7.3% Railways 6.4% Toll Roads 3.1% Water 1.1% Other (includes short-term investments) 2.6% Country diversification 3,5 (%) United States 57.8% Canada 7.4% Australia 4.6% India 3.7% Japan 3.3% United Kingdom 3.0% Spain 2.8% China 2.6% Mexico 2.6% Other (includes short-term investments) 12.2% |
| Largest Holdings [Text Block] | Top ten holdings 3,4 (%) NextEra Energy, Inc. 6.8% American Tower Corp. 5.2% Duke Energy Corp. 4.0% TC Energy Corp. 4.0% NiSource, Inc. 3.8% Cheniere Energy, Inc. 3.4% Public Service Enterprise Group, Inc. 3.3% PG&E Corp. 3.2% PPL Corp. 3.0% Pembina Pipeline Corp. 2.9% |
| Material Fund Change [Text Block] | Material Fund changes There have been no material changes to the Fund since the beginning of the reporting period that are required to be disclosed in this report. For more complete information about other changes to the Fund, you may review the Fund's current prospectus, which is available upon request by calling 1-800-330-7348 or visiting www.cohenandsteers.com/fund-literature. |
| Class R | |
| Shareholder Report [Line Items] | |
| Fund Name | Cohen & Steers Global Infrastructure Fund, Inc. |
| Class Name | Class R |
| Trading Symbol | CSURX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund, by scanning the QR code or visiting www.cohenandsteers.com/fund-literature 1-800-330-7348 |
| Additional Information Phone Number | 1-800-330-7348 |
| Additional Information Website | www.cohenandsteers.com/fund-literature |
| Expenses [Text Block] | What were the Fund costs for last six months? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R $69.89 1.38% |
| Expenses Paid, Amount | $ 69.89 |
| Expense Ratio, Percent | 1.38% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the last six months and what affected its performance? The share class had a 3.69% total return in the six months ended June 30, 2024, compared with the Linked Index, 1 Security selection and an overweight allocation to marine ports contributed to relative performance in the period. An overweight investment in Santos Brasil positively contributed on better-than-expected results as the company is benefiting from an ongoing shortage in container terminal capacity in Brazil. Also in the sector, an out-of-benchmark investment in JSW Infrastructure positively contributed, on speculation that India would privatize port operations, with JSW being a key beneficiary of the policy change. Security selection and an overweight in midstream energy also contributed to relative performance, in part due to an overweight in Targa Resources, which outperformed amid continued strong natural gas liquids volumes in the Permian Basin. Security selection in electric utilities further aided relative returns. This included an overweight in Public Service Enterprise Group, which rose on investor excitement around the potential for the company to benefit from the increased electricity demand from data center customers. An out-of-index position in NTPC also positively contributed; largely due to continued strong power demand in India. An overweight allocation in the communications sector detracted from relative performance. Tower companies performed poorly due to higher interest rates and a slowdown in leasing activity. Security selection in airports also detracted from relative performance, led by an out-of-benchmark investment in Japan Airport Terminal Company, which declined due to both disappointing passenger traffic and more severe cost pressures than expected. There were no other detractors at the sector level in the period. The currency impact of the Fund's investments in foreign securities detracted from absolute performance during the period, as, overall, foreign currencies depreciated against the dollar. Top contributors Top detractors Marine Ports Communications Electric Airports Midstream |
| Performance Past Does Not Indicate Future [Text] | Data quoted represents past performance, which is no guarantee of future results. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average annual total returns (%)* 1 Year 5 Years Since Inception 10/1/2014 Class R 2 5.05% 3.90% 5.03% Linked Index 1 4.34% 3.06% 5.35% S&P 500 Index 24.56% 15.04% 13.24% MSCI World Index - net 20.19% 11.77% 9.78% |
| Performance Inception Date | Oct. 01, 2014 |
| Net Assets | $ 764,611,810 |
| Holdings Count | shares | 58 |
| Investment Company, Portfolio Turnover | 57% |
| Additional Fund Statistics [Text Block] | Key fund statistics (as of June 30, 2024) Net assets $764,611,810 Number of portfolio holdings (excluding derivatives) 58 Portfolio turnover rate 57% |
| Holdings [Text Block] | Portfolio holdings (as of June 30, 2024) Top ten holdings 3,4 (%) NextEra Energy, Inc. 6.8% American Tower Corp. 5.2% Duke Energy Corp. 4.0% TC Energy Corp. 4.0% NiSource, Inc. 3.8% Cheniere Energy, Inc. 3.4% Public Service Enterprise Group, Inc. 3.3% PG&E Corp. 3.2% PPL Corp. 3.0% Pembina Pipeline Corp. 2.9% Sector diversification 3,5 (%) Electric 37.1% Midstream 14.1% Gas Distribution 11.5% Communications 8.8% Marine Ports 8.0% Airports 7.3% Railways 6.4% Toll Roads 3.1% Water 1.1% Other (includes short-term investments) 2.6% Country diversification 3,5 (%) United States 57.8% Canada 7.4% Australia 4.6% India 3.7% Japan 3.3% United Kingdom 3.0% Spain 2.8% China 2.6% Mexico 2.6% Other (includes short-term investments) 12.2% |
| Largest Holdings [Text Block] | Top ten holdings 3,4 (%) NextEra Energy, Inc. 6.8% American Tower Corp. 5.2% Duke Energy Corp. 4.0% TC Energy Corp. 4.0% NiSource, Inc. 3.8% Cheniere Energy, Inc. 3.4% Public Service Enterprise Group, Inc. 3.3% PG&E Corp. 3.2% PPL Corp. 3.0% Pembina Pipeline Corp. 2.9% |
| Material Fund Change [Text Block] | Material Fund changes There have been no material changes to the Fund since the beginning of the reporting period that are required to be disclosed in this report. For more complete information about other changes to the Fund, you may review the Fund's current prospectus, which is available upon request by calling 1-800-330-7348 or visiting www.cohenandsteers.com/fund-literature. |
| Class Z | |
| Shareholder Report [Line Items] | |
| Fund Name | Cohen & Steers Global Infrastructure Fund, Inc. |
| Class Name | Class Z |
| Trading Symbol | CSUZX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund, by scanning the QR code or visiting www.cohenandsteers.com/fund-literature 1-800-330-7348 |
| Additional Information Phone Number | 1-800-330-7348 |
| Additional Information Website | www.cohenandsteers.com/fund-literature |
| Expenses [Text Block] | What were the Fund costs for last six months? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $44.11 0.87% |
| Expenses Paid, Amount | $ 44.11 |
| Expense Ratio, Percent | 0.87% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the last six months and what affected its performance? The share class had a 3.91% total return in the six months ended June 30, 2024, compared with the Linked Index, 1 Security selection and an overweight allocation to marine ports contributed to relative performance in the period. An overweight investment in Santos Brasil positively contributed on better-than-expected results as the company is benefiting from an ongoing shortage in container terminal capacity in Brazil. Also in the sector, an out-of-benchmark investment in JSW Infrastructure positively contributed, on speculation that India would privatize port operations, with JSW being a key beneficiary of the policy change. Security selection and an overweight in midstream energy also contributed to relative performance, in part due to an overweight in Targa Resources, which outperformed amid continued strong natural gas liquids volumes in the Permian Basin. Security selection in electric utilities further aided relative returns. This included an overweight in Public Service Enterprise Group, which rose on investor excitement around the potential for the company to benefit from the increased electricity demand from data center customers. An out-of-index position in NTPC also positively contributed; largely due to continued strong power demand in India. An overweight allocation in the communications sector detracted from relative performance. Tower companies performed poorly due to higher interest rates and a slowdown in leasing activity. Security selection in airports also detracted from relative performance, led by an out-of-benchmark investment in Japan Airport Terminal Company, which declined due to both disappointing passenger traffic and more severe cost pressures than expected. There were no other detractors at the sector level in the period. The currency impact of the Fund's investments in foreign securities detracted from absolute performance during the period, as, overall, foreign currencies depreciated against the dollar. Top contributors Top detractors Marine Ports Communications Electric Airports Midstream |
| Performance Past Does Not Indicate Future [Text] | Data quoted represents past performance, which is no guarantee of future results. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average annual total returns (%)* 1 Year 5 Years Since Inception 10/1/2014 Class Z 2 5.55% 4.40% 5.56% Linked Index 1 4.34% 3.06% 5.35% S&P 500 Index 24.56% 15.04% 13.24% MSCI World Index - net 20.19% 11.77% 9.78% |
| Performance Inception Date | Oct. 01, 2014 |
| Net Assets | $ 764,611,810 |
| Holdings Count | shares | 58 |
| Investment Company, Portfolio Turnover | 57% |
| Additional Fund Statistics [Text Block] | Key fund statistics (as of June 30, 2024) Net assets $764,611,810 Number of portfolio holdings (excluding derivatives) 58 Portfolio turnover rate 57% |
| Holdings [Text Block] | Portfolio holdings (as of June 30, 2024) Top ten holdings 3,4 (%) NextEra Energy, Inc. 6.8% American Tower Corp. 5.2% Duke Energy Corp. 4.0% TC Energy Corp. 4.0% NiSource, Inc. 3.8% Cheniere Energy, Inc. 3.4% Public Service Enterprise Group, Inc. 3.3% PG&E Corp. 3.2% PPL Corp. 3.0% Pembina Pipeline Corp. 2.9% Sector diversification 3,5 (%) Electric 37.1% Midstream 14.1% Gas Distribution 11.5% Communications 8.8% Marine Ports 8.0% Airports 7.3% Railways 6.4% Toll Roads 3.1% Water 1.1% Other (includes short-term investments) 2.6% Country diversification 3,5 (%) United States 57.8% Canada 7.4% Australia 4.6% India 3.7% Japan 3.3% United Kingdom 3.0% Spain 2.8% China 2.6% Mexico 2.6% Other (includes short-term investments) 12.2% |
| Largest Holdings [Text Block] | Top ten holdings 3,4 (%) NextEra Energy, Inc. 6.8% American Tower Corp. 5.2% Duke Energy Corp. 4.0% TC Energy Corp. 4.0% NiSource, Inc. 3.8% Cheniere Energy, Inc. 3.4% Public Service Enterprise Group, Inc. 3.3% PG&E Corp. 3.2% PPL Corp. 3.0% Pembina Pipeline Corp. 2.9% |
| Material Fund Change [Text Block] | Material Fund changes There have been no material changes to the Fund since the beginning of the reporting period that are required to be disclosed in this report. For more complete information about other changes to the Fund, you may review the Fund's current prospectus, which is available upon request by calling 1-800-330-7348 or visiting www.cohenandsteers.com/fund-literature. |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | 60 Months Ended | 117 Months Ended | 120 Months Ended | ||||||||||||
| Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015 | Oct. 01, 2014 | Jun. 30, 2014 | |
| Class A | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Class A | |||||||||||||||
| Account Value | $ 14,917 | $ 14,917 | $ 14,917 | $ 14,917 | $ 14,917 | $ 14,180 | $ 14,214 | $ 13,813 | $ 11,583 | $ 12,232 | $ 10,701 | $ 10,350 | $ 9,682 | $ 9,166 | $ 9,550 | |
| Average Annual Return, Percent | 0.46% | 3.09% | 4.08% | |||||||||||||
| Class A | Without Sales Load [Member] | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 5.20% | 4.05% | 4.56% | |||||||||||||
| Class C | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Class C | |||||||||||||||
| Account Value | $ 14,635 | $ 14,635 | 14,635 | 14,635 | $ 14,635 | 14,007 | 14,125 | 13,821 | 11,669 | 12,398 | 10,920 | 10,629 | 10,007 | 9,541 | 10,000 | |
| Average Annual Return, Percent | 3.48% | 3.37% | 3.88% | |||||||||||||
| Class C | Without Sales Load [Member] | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 4.48% | 3.37% | 3.88% | |||||||||||||
| Class I | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Class I | |||||||||||||||
| Account Value | $ 161,402 | $ 161,402 | $ 161,402 | 161,402 | $ 161,402 | 152,914 | 152,721 | 147,928 | 123,610 | 130,043 | 113,369 | 109,303 | 101,896 | 96,236 | 100,000 | |
| Class I | Without Sales Load [Member] | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 5.55% | 4.41% | 4.90% | |||||||||||||
| Class R | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Class R | |||||||||||||||
| Account Value | $ 16,134 | $ 16,134 | $ 16,134 | $ 16,134 | $ 16,134 | 15,359 | 15,417 | 15,006 | 12,604 | 13,323 | 11,680 | 11,314 | 10,600 | 10,052 | $ 10,000 | |
| Class R | Without Sales Load [Member] | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 5.05% | 3.90% | 5.03% | |||||||||||||
| Class Z | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Class Z | |||||||||||||||
| Account Value | $ 16,939 | $ 16,939 | $ 16,939 | $ 16,939 | $ 16,939 | 16,048 | 16,028 | 15,525 | 12,979 | 13,654 | 11,898 | 11,471 | 10,686 | 10,085 | 10,000 | |
| Class Z | Without Sales Load [Member] | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 5.55% | 4.40% | 5.56% | |||||||||||||
| Linked Index | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Linked Index1 | |||||||||||||||
| Account Value | $ 15,897 | $ 15,897 | 15,897 | $ 15,897 | $ 15,897 | 15,236 | 15,331 | 14,899 | 12,572 | 13,669 | 11,837 | 11,521 | 10,484 | 9,634 | 10,000 | |
| Average Annual Return, Percent | 4.34% | 3.06% | 4.74% | |||||||||||||
| Linked Index, Class C | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Linked Index1 | |||||||||||||||
| Account Value | $ 15,897 | $ 15,897 | 15,897 | 15,897 | $ 15,897 | 15,236 | 15,331 | 14,899 | 12,572 | 13,669 | 11,837 | 11,521 | 10,484 | 9,634 | 10,000 | |
| Average Annual Return, Percent | 4.34% | 3.06% | 4.74% | |||||||||||||
| Linked Index, Class I | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Linked Index1 | |||||||||||||||
| Account Value | $ 158,968 | $ 158,968 | $ 158,968 | 158,968 | $ 158,968 | 152,355 | 153,310 | 148,991 | 125,725 | 136,688 | 118,374 | 115,206 | 104,840 | 96,336 | 100,000 | |
| Average Annual Return, Percent | 4.34% | 3.06% | 4.74% | |||||||||||||
| Linked Index, Class R | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Linked Index1 | |||||||||||||||
| Account Value | $ 16,627 | $ 16,627 | $ 16,627 | $ 16,627 | $ 16,627 | 15,935 | 16,035 | 15,583 | 13,150 | 14,296 | 12,381 | 12,049 | 10,965 | 10,076 | 10,000 | |
| Average Annual Return, Percent | 4.34% | 3.06% | 5.35% | |||||||||||||
| Linked Index, Class Z | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Linked Index1 | |||||||||||||||
| Account Value | $ 16,627 | $ 16,627 | $ 16,627 | $ 16,627 | $ 16,627 | 15,935 | 16,035 | 15,583 | 13,150 | 14,296 | 12,381 | 12,049 | 10,965 | 10,076 | 10,000 | |
| Average Annual Return, Percent | 4.34% | 3.06% | 5.35% | |||||||||||||
| S&P 500 Index | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||
| Account Value | $ 33,521 | $ 33,521 | 33,521 | $ 33,521 | $ 33,521 | 26,912 | 22,503 | 25,175 | 17,881 | 16,633 | 15,064 | 13,170 | 11,171 | 10,742 | 10,000 | |
| Average Annual Return, Percent | 24.56% | 15.04% | 12.86% | |||||||||||||
| MSCI World Index - net | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index - net | |||||||||||||||
| Account Value | $ 24,021 | $ 24,021 | 24,021 | 24,021 | $ 24,021 | 19,986 | 16,864 | 19,687 | 14,159 | 13,767 | 12,948 | 11,655 | 9,861 | 10,143 | 10,000 | |
| Average Annual Return, Percent | 20.19% | 11.77% | 9.16% | |||||||||||||
| S&P 500 Index, Class C | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||
| Account Value | $ 33,521 | $ 33,521 | 33,521 | 33,521 | $ 33,521 | 26,912 | 22,503 | 25,175 | 17,881 | 16,633 | 15,064 | 13,170 | 11,171 | 10,742 | 10,000 | |
| Average Annual Return, Percent | 24.56% | 15.04% | 12.86% | |||||||||||||
| MSCI World Index - net, Class C | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index - net | |||||||||||||||
| Account Value | $ 24,021 | $ 24,021 | 24,021 | 24,021 | $ 24,021 | 19,986 | 16,864 | 19,687 | 14,159 | 13,767 | 12,948 | 11,655 | 9,861 | 10,143 | 10,000 | |
| Average Annual Return, Percent | 20.19% | 11.77% | 9.16% | |||||||||||||
| S&P 500 Index, Class I | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||
| Account Value | $ 335,207 | $ 335,207 | 335,207 | 335,207 | $ 335,207 | 269,121 | 225,029 | 251,754 | 178,810 | 166,327 | 150,635 | 131,704 | 111,712 | 107,423 | 100,000 | |
| Average Annual Return, Percent | 24.56% | 15.04% | 12.86% | |||||||||||||
| MSCI World Index - net, Class I | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index - net | |||||||||||||||
| Account Value | $ 240,213 | $ 240,213 | $ 240,213 | 240,213 | $ 240,213 | 199,858 | 168,641 | 196,868 | 141,587 | 137,672 | 129,476 | 116,553 | 98,610 | 101,430 | $ 100,000 | |
| Average Annual Return, Percent | 20.19% | 11.77% | 9.16% | |||||||||||||
| S&P 500 Index, Class R | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||
| Account Value | $ 33,589 | $ 33,589 | $ 33,589 | $ 33,589 | $ 33,589 | 26,967 | 22,549 | 25,227 | 17,917 | 16,667 | 15,094 | 13,197 | 11,194 | 10,764 | 10,000 | |
| Average Annual Return, Percent | 24.56% | 15.04% | 13.24% | |||||||||||||
| MSCI World Index - net, Class R | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index - net | |||||||||||||||
| Account Value | $ 24,830 | $ 24,830 | $ 24,830 | $ 24,830 | 24,830 | 20,659 | 17,432 | 20,350 | 14,636 | 14,231 | 13,384 | 12,048 | 10,193 | 10,485 | 10,000 | |
| Average Annual Return, Percent | 20.19% | 11.77% | 9.78% | |||||||||||||
| S&P 500 Index, Class Z | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||
| Account Value | $ 33,589 | $ 33,589 | $ 33,589 | $ 33,589 | 33,589 | 26,967 | 22,549 | 25,227 | 17,917 | 16,667 | 15,094 | 13,197 | 11,194 | 10,764 | 10,000 | |
| Average Annual Return, Percent | 24.56% | 15.04% | 13.24% | |||||||||||||
| MSCI World Index - net, Class Z | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI World Index - net | |||||||||||||||
| Account Value | $ 24,830 | $ 24,830 | $ 24,830 | $ 24,830 | $ 24,830 | $ 20,659 | $ 17,432 | $ 20,350 | $ 14,636 | $ 14,231 | $ 13,384 | $ 12,048 | $ 10,193 | $ 10,485 | $ 10,000 | |
| Average Annual Return, Percent | 20.19% | 11.77% | 9.78% | |||||||||||||
| Shareholder Report, Holdings (Details) | Jun. 30, 2024 |
| Class A | Electric | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.10% |
| Class A | Midstream | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| Class A | Gas Distribution [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Class A | Communications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| Class A | Marine Ports | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| Class A | Airports | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| Class A | Railways | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| Class A | Toll Roads | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Class A | Water | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| Class A | Other (includes short-term investments) | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class A | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 57.80% |
| Class A | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| Class A | AUSTRALIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| Class A | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| Class A | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class A | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Class A | SPAIN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Class A | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class A | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class A | Other (includes short-term investments) | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| Class A | NextEra Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| Class A | American Tower Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Class A | Duke Energy Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Class A | TC Energy Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Class A | NiSource, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Class A | Cheniere Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Class A | Public Service Enterprise Group, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class A | PG&E Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Class A | PPL Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Class A | Pembina Pipeline Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Class C | Electric | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.10% |
| Class C | Midstream | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| Class C | Gas Distribution [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Class C | Communications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| Class C | Marine Ports | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| Class C | Airports | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| Class C | Railways | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| Class C | Toll Roads | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Class C | Water | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| Class C | Other (includes short-term investments) | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class C | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 57.80% |
| Class C | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| Class C | AUSTRALIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| Class C | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| Class C | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class C | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Class C | SPAIN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Class C | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class C | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class C | Other (includes short-term investments) | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| Class C | NextEra Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| Class C | American Tower Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Class C | Duke Energy Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Class C | TC Energy Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Class C | NiSource, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Class C | Cheniere Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Class C | Public Service Enterprise Group, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class C | PG&E Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Class C | PPL Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Class C | Pembina Pipeline Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Class I | Electric | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.10% |
| Class I | Midstream | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| Class I | Gas Distribution [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Class I | Communications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| Class I | Marine Ports | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| Class I | Airports | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| Class I | Railways | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| Class I | Toll Roads | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Class I | Water | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| Class I | Other (includes short-term investments) | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class I | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 57.80% |
| Class I | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| Class I | AUSTRALIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| Class I | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| Class I | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class I | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Class I | SPAIN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Class I | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class I | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class I | Other (includes short-term investments) | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| Class I | NextEra Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| Class I | American Tower Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Class I | Duke Energy Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Class I | TC Energy Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Class I | NiSource, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Class I | Cheniere Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Class I | Public Service Enterprise Group, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class I | PG&E Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Class I | PPL Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Class I | Pembina Pipeline Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Class R | Electric | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.10% |
| Class R | Midstream | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| Class R | Gas Distribution [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Class R | Communications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| Class R | Marine Ports | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| Class R | Airports | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| Class R | Railways | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| Class R | Toll Roads | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Class R | Water | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| Class R | Other (includes short-term investments) | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class R | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 57.80% |
| Class R | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| Class R | AUSTRALIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| Class R | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| Class R | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class R | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Class R | SPAIN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Class R | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class R | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class R | Other (includes short-term investments) | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| Class R | NextEra Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| Class R | American Tower Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Class R | Duke Energy Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Class R | TC Energy Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Class R | NiSource, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Class R | Cheniere Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Class R | Public Service Enterprise Group, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class R | PG&E Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Class R | PPL Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Class R | Pembina Pipeline Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Class Z | Electric | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.10% |
| Class Z | Midstream | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| Class Z | Gas Distribution [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Class Z | Communications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| Class Z | Marine Ports | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| Class Z | Airports | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| Class Z | Railways | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| Class Z | Toll Roads | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Class Z | Water | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| Class Z | Other (includes short-term investments) | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class Z | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 57.80% |
| Class Z | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| Class Z | AUSTRALIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| Class Z | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| Class Z | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class Z | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Class Z | SPAIN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Class Z | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class Z | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Class Z | Other (includes short-term investments) | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| Class Z | NextEra Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| Class Z | American Tower Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Class Z | Duke Energy Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Class Z | TC Energy Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Class Z | NiSource, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Class Z | Cheniere Energy, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Class Z | Public Service Enterprise Group, Inc. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Class Z | PG&E Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Class Z | PPL Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Class Z | Pembina Pipeline Corp. | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
