Class I Shares [Member] Class II Shares [Member] Class III Shares [Member] Shares of Beneficial Interest [Member] Limited Operating History Risk [Member] Unlisted Closed-End Structure; Liquidity Limited to Quarterly Repurchases of Shares [Member] Reliance on the Investment Committee [Member] Reliance on Key Personnel [Member] Concentration of Investments [Member] Limited operating history of Infrastructure Investments [Member] Nature of Portfolio Companies [Member] Investments in infrastructure assets [Member] Investments in the Portfolio Funds generally; dependence on the Portfolio Fund Managers [Member] Temporary Investments [Member] Portfolio Funds not registered [Member] Portfolio Funds are generally non-diversified [Member] Portfolio Funds’ securities are generally illiquid [Member] Senior Loans [Member] Mezzanine Investments [Member] Valuations of Private Infrastructure Investments; valuations subject to adjustment [Member] Valuation of Infrastructure Investments Uncertain [Member] Liquidity and Valuation Risk [Member] Publicly Traded Infrastructure Risk [Member] Failure to Qualify as a RIC or Satisfy Distribution Requirement [Member] Difficulty meeting RIC distribution requirement [Member] Market Disruption and Geopolitical Risk [Member] Market Uncertainties [Member] Distressed Securities [Member] Competition for Investment Opportunities [Member] Access to Investments [Member] Non-Diversified Status [Member] Regulatory Risks of Private Investment Companies [Member] General Legal, Tax and Regulatory Risks [Member] Foreign Investments and Emerging Markets Risk [Member] Investment in Other Investment Companies Risk [Member] Reporting Requirements [Member] Uncertain source and quantity of funding [Member] Fluctuations in performance [Member] Cybersecurity Risk [Member] Restrictions on borrowing [Member] Control Positions [Member] Currency Risk [Member] Risks relating to accounting, auditing and financial reporting, etc [Member] Amount or Frequency of Distributions Not Guaranteed [Member] Portfolio Fund operations not transparent [Member] Valuation of the Fund’s interests in Portfolio Funds [Member] Multiple levels of fees and expenses [Member] Inability to Vote [Member] Consortium or Offsetting Investments [Member] Limitations on ability to invest in Portfolio Funds [Member] Indemnification of Portfolio Funds and Portfolio Fund Managers [Member] Contingent Liabilities on Disposition of Investments [Member] Capital Call Risk [Member] Lack of Control [Member] Availability of Financing and Market Conditions [Member] Termination of the Fund’s Interest in a Portfolio Fund [Member] Repurchase Offers Risk [Member] Limited Operating History of Portfolio Companies [Member] Risks Associated with Management of Business Plans [Member] Reliance on Portfolio Company Management [Member] No Assurance of Additional Capital for Investments [Member] General Risks of Secondary Investments [Member] Contingent Liabilities Associated with Secondary Investments [Member] Risks relating to secondary investments involving syndicates [Member] Securities Markets Risk [Member] Special Purpose Acquisition Companies Risk [Member] Eurozone Risk [Member] Asia Pacific Risk [Member] Latin America Risk [Member] Limits of Risk Disclosure [Member] Credit Risk [Member]