Class A Shares Class I Shares Class D Shares Closed-End Fund; Liquidity Limited to Periodic Repurchases of Shares [Member] Payment In Kind For Repurchased Shares [Member] Substantial Repurchases [Member] Dilution from Subsequent Offerings of Shares [Member] Uncertain Source and Quantity of Funding [Member] Non-Diversified Status [Member] Valuation for Fund Investments Uncertain [Member] Valuations Subject to Adjustment [Member] Access and Competition [Member] Amount or Frequency of Distributions Not Guaranteed [Member] Fluctuations in Performance [Member] Restrictions on Raising Capital and Borrowing [Member] Reporting Requirements [Member] Reliance on the Adviser [Member] Reliance on Key Personnel [Member] Incentive Fee [Member] Divergence of Resources [Member] Broad and Wide-Ranging Activities [Member] Firm Policies and Procedures [Member] Transactions with Affiliates [Member] Use of Third-Party Service Providers [Member] Temporary Investments [Member] Identification of Investments [Member] Long Term Portfolio Fund Investments; No Assurance of Investment Return [Member] Concentration of Investments [Member] Nature of Portfolio Companies [Member] Follow-on Investments [Member] Control Positions [Member] Leverage [Member] Derivative Instruments [Member] Other Risks [Member] Non-U.S. Investments [Member] Currency Risk [Member] Hedging [Member] Risks Relating to Accounting, Auditing and Financial Reporting, etc. [Member] Investments in the Portfolio Funds Generally; Dependence on Sponsors [Member] Portfolio Funds Not Registered [Member] Portfolio Funds are Generally Non-Diversified [Member] Illiquidity of Portfolio Fund Interests [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 Sponsors [Member] Termination of the Fund’s Interest in a Portfolio Fund [Member] Portfolio Funds’ Tax Risk [Member] Risks Applicable to Other Fund Investments [Member] General Risks of Secondary Investments [Member] Contingent Liabilities Associated with Secondary Investments [Member] Competition for Secondary Investments [Member] Risks Relating to Secondary Investments Involving Syndicates [Member] Failure to Qualify as a RIC or Satisfy Distribution Requirement [Member] Difficulty Meeting RIC Requirements [Member] Legal, Tax and Regulatory Changes [Member] Non-Qualification as a Regulated Investment Company [Member] Systemic Risk [Member] Business, Terrorism and Catastrophe Risks [Member] Cybersecurity Risk [Member] Market Disruption and Geopolitical Risks. [Member] Artificial Intelligence Risk [Member] Natural Disasters, Adverse Weather Conditions, and Climate Change Risk [Member] Economic and Market Events Risk [Member] Economic Recession or Downturn Risk [Member]