Agriculture And Forestry Sector Risk [Member] Agriculture And Forestry Sector Risk [Member] Arbitrage Risk [Member] Arbitrage Risk [Member] Artificial Intelligence Risk [Member] Artificial Intelligence Risk [Member] Asset Level Management Risk [Member] Asset Level Management Risk [Member] Best Efforts Offering Risk [Member] Best Efforts Offering Risk [Member] Changes In Tax Laws Risk [Member] Changes In Tax Laws Risk [Member] Changes In Trade Negotiations Risk [Member] Changes In Trade Negotiations Risk [Member] CLASS D SHARES (CGIDX) [Member] Class D Shares Cgidx [Member] Class I Shares Cgiqx [Member] CLASS I SHARES CGIQX [Member] CLASS S SHARES (CGISX) [Member] Class S Shares Cgisx [Member] Class U2 Shares Cgivx [Member] CLASS U-2 SHARES (CGIVX) [Member] Class U Shares Cgiux [Member] CLASS U SHARES (CGIUX) [Member] Co Investment Risk [Member] Co Investment Risk [Member] Commitment Strategy Risk [Member] Commitment Strategy Risk [Member] Commodity Risk [Member] Commodity Risk [Member] Competitive Marketplace Risk [Member] Competitive Marketplace Risk [Member] Conflicts Of Interest Risk [Member] Conflicts Of Interest Risk [Member] Construction Risk [Member] Construction Risk [Member] Contract Risk [Member] Contract Risk [Member] Currency Hedging Risk [Member] Currency Hedging Risk [Member] Cyber Security Risk [Member] Cyber Security Risk [Member] Derivatives Risk [Member] Derivatives Risk [Member] Documentation And Other Legal Risk [Member] Documentation And Other Legal Risk [Member] Due Diligence Risk [Member] Due Diligence Risk [Member] Energy Sector Risk [Member] Energy Sector Risk [Member] Environmental Risk [Member] Environmental Risk [Member] Eurozone Risk [Member] Eurozone Risk [Member] Financial Sector And Financial Institutions Risk [Member] Financial Sector And Financial Institutions Risk [Member] First Lien Senior Secured Loans, Second Lien Senior Secured Loans And Unitranche Debt Risk [Member] First Lien Senior Secured Loans, Second Lien Senior Secured Loans And Unitranche Debt Risk [Member] Foreign Currencies Risk [Member] Foreign Currencies Risk [Member] General Economic and Market Conditions [Member] General Economic And Market Conditions Risk [Member] General Economic And Market Conditions Risk [Member] General Risks Of Secondary Investments Risk [Member] General Risks Of Secondary Investments Risk [Member] Geographic Concentration Risks [Member] Geographic Concentration Risks [Member] Government Intervention Risks [Member] Government Intervention Risks [Member] High Yield Securities And Distressed Securities Risk [Member] High Yield Securities And Distressed Securities Risk [Member] Illiquidity Of Infrastructure Investments Risk [Member] Illiquidity of Infrastructure Investments Risk [Member] Illiquidity Of Infrastructure Investments Risk [Member] Inflation And Interest Rate Risk Related To Infrastructure Investments [Member] Inflation and Interest Rate Risk related to Infrastructure Investments [Member] Inflation And Interest Rate Risk Related To Infrastructure Investments [Member] Infrastructure Industry Concentration Risk [Member] Infrastructure Industry Concentration Risk [Member] Infrastructure Risk [Member] Investments In Non Voting Stock Inability To Vote Risk [Member] Investments In Non Voting Stock Inability To Vote Risk [Member] Investments In Securities Of Small Or Middle Market Portfolio Companies Risk [Member] Investments In Securities Of Small Or Middle Market Portfolio Companies Risk [Member] Investment Sourcing Risk [Member] Investment Sourcing Risk [Member] Lack Of Funds To Make Additional Investments Risk [Member] Lack Of Funds To Make Additional Investments Risk [Member] Leverage Utilized By The Fund Risk [Member] Leverage Utilized By Fund Risk [Member] Leverage Utilized By Infrastructure Funds [Member] Leverage Utilized By Infrastructure Funds [Member] Limitations On Shareholder Authority Risk [Member] Limitations On Shareholder Authority Risk [Member] Limited Operating History Risk [Member] Limited Operating History Risk [Member] Market Disruption And Geopolitical Risk [Member] Market Disruption And Geopolitical Risk [Member] Master Feeder Fund Arrangement Risk [Member] Master Feeder Fund Arrangement Risk [Member] Mezzanine Investments Risk [Member] Mezzanine Investments Risk [Member] Nature Of Portfolio Companies Risk [Member] Nature Of Portfolio Companies Risk [Member] Nature Of Portfolio Company [Member] Nature of Portfolio Company [Member] Nature of Portfolio Companies [Member] Non Diversification Risk [Member] Non Diversification Risk [Member] Non United State Risk [Member] Non United State Risk [Member] Non U.S. Risk [Member] Operational And Technical Risks And Force Majeure Government Interventions Risk [Member] Operational And Technical Risks And Force Majeure Government Interventions Risk [Member] Options And Futures Risk [Member] Options And Futures Risk [Member] Potential Conflicts Of Interest Risk Allocation Of Investment Opportunities [Member] Potential Conflicts Of Interest Risk Allocation Of Investment Opportunities [Member] Potential Conflicts Of Interest Risk Allocation Of Personnel [Member] Potential Conflicts Of Interest Risk Allocation Of Personnel [Member] Potential Conflicts Of Interest Risk Lack Of Information Barriers [Member] Potential Conflicts Of Interest Risk Lack Of Information Barriers [Member] Primary Investments Risk [Member] Primary Investments Risk [Member] Principal Investment Related Energy Sector Risk [Member] Principal Investment Related Energy Sector Risk [Member] Energy Sector Risk [Member] Private Equity Investments Risk [Member] Private Equity Investments Risk [Member] Privatization Risk [Member] Privatization Risk [Member] Project Risk [Member] Project Risk [Member] Public Demand And Usage Risk [Member] Public Demand And Usage Risk [Member] Public Demand and Usage Risk [Member] Regulatory Risk [Member] Regulatory Risk [Member] Repurchase Agreements And Reverse Repurchase Agreements Risk [Member] Repurchase Agreements And Reverse Repurchase Agreements Risk [Member] Repurchase Offers Risks [Member] Repurchase Offers Risks [Member] Restrictions On Entering Into Affiliated Transactions Risk [Member] Restrictions On Entering Into Affiliated Transactions Risk [Member] Risks Associated With Commodity Futures Trading Commission Regulation Risk [Member] Risks Associated With Commodity Futures Trading Commission Regulation Risk [Member] Risks Associated With Covenant Lite Loans Risk [Member] Risks Associated With Covenant Lite Loans Risk [Member] Risks Relating To Fund’s RIC Status [Member] Risks Relating To Funds Regulated Investment Company Status [Member] Risks Relating To Funds Ric Status [Member] Sector Concentration Risk [Member] Sector Concentration Risk [Member] Strategic Asset Risk [Member] Strategic Asset Risk [Member] Substantial Repurchases Risk [Member] Substantial Repurchases Risk [Member] Swap Agreements Risk [Member] Swap Agreements Risk [Member] Swaptions Risk [Member] Swaptions Risk [Member] Technology Sector Risk [Member] Technology Sector Risk [Member] Uncertain Exit Strategies Risk [Member] Uncertain Exit Strategies Risk [Member] United State Government Debt Securities Risk [Member] U.s. Government Debt Securities Risk. [Member] U.S Government Debt Securities Risk [Member] Utilities Sector Risk [Member] Utilities Sector Risk [Member] Utility Industry Risk [Member] Utility Industry Risk [Member] Valuation of the Funds Interests in Infrastructure Funds and Certain Infrastructure Assets Risk [Member] Valuation Of Funds Interests In Infrastructure Funds And Certain Infrastructure Assets Risk [Member] Valuation Of Fund’s Interests In Infrastructure Funds And Certain Infrastructure Assets Risk [Member] Valuations Subject To Adjustment Risk [Member] Valuations Subject to Adjustment Risk [Member] Valuations Subject To Adjustment Risk [Member] Valuations Subject To Conflict Of Interest Risk [Member] Valuations Subject to Conflict of Interest Risk [Member] When Issued Securities And Forward Commitments Risk [Member] When Issued Securities And Forward Commitments Risk [Member] Withholding Risk Applicable To Infrastructure Funds [Member] Withholding Risk Applicable To Infrastructure Funds [Member] Withholding Risks For Non U.S Holders [Member] Withholding Risks For Non United State Holders [Member] Withholding Risks For Non United State Holders [Member] Debt Instrument Name [Domain]