Class I Shares [Member] Class II Shares [Member] Shares of Beneficial Interest [Member] Unlisted Closed-End Structure; Liquidity Limited to Quarterly Repurchases of Shares. [Member] Unspecified investments; dependence on the Adviser/Sub-Adviser, as applicable. [Member] Reliance on Key Personnel. [Member] Concentration of Investments. [Member] Limited operating history of Private Equity Investments. [Member] Nature of Portfolio Companies. [Member] Investments in the Portfolio Funds generally; dependence on the Portfolio Fund Managers. [Member] Tax Risk [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] Structured Finance Securities Risk. [Member] Distressed Debt. [Member] Valuations of Portfolio Funds valuations subject to adjustment. [Member] Valuation of Private Equity Investments Uncertain. [Member] Liquidity and Valuation Risk. [Member] Publicly Traded Private Equity 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] Competition for investment opportunities. [Member] Access to Investments. [Member] Non-Diversified Status. [Member] Regulatory Risks of Private Funds. [Member] General Legal, Tax and Regulatory Risks. [Member] Derivative Risk. [Member] Foreign Investments and Emerging Markets Risk. [Member] Exchange-Traded Product Risk. [Member] Investment in Other Investment Companies Risk. [Member] Dilution from Subsequent Offerings of Shares. [Member] Reporting Requirements. [Member] Uncertain source and quantity of funding. [Member] Fluctuations in performance. [Member] Payment In-Kind for Repurchased Shares. [Member] Cybersecurity Risk. [Member] Restrictions on borrowing. [Member] Control Positions. [Member] Leverage. [Member] Currency Risk. [Member] Hedging. [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] Capital Call Risk. [Member] Lack of Control. [Member] Availability of Financing and Market Conditions. [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] Eurozone Risk. [Member] Brexit Risk. [Member] Limits of Risk Disclosure [Member] Credit Risk [Member]