CLASS A [Member] CLASS C [Member] CLASS E [Member] CLASS I [Member] CLASS R [Member] Preferred Shares and Other Securities [Member] Principal Risks of Investing in the Fund [Member] Active Investment Management Risk [Member] Availability of Investment Opportunities [Member] GP Stakes Risk [Member] Private Equity Investments [Member] “J-Curve” Performance Risk [Member] Market Risk [Member] Concentration of Investments [Member] Geographic Concentration Risks [Member] Sector Concentration Risk [Member] Infrastructure Sector Risk [Member] Real Estate Sector Risk [Member] Real Assets Investments Risk [Member] First Lien Senior Secured Loans, Second Lien Senior Secured Loans and Unitranche Debt [Member] Mezzanine Investments Risk [Member] Foreign Investments Risk [Member] Regional/Country Focus Risk [Member] Illiquid and Restricted Securities Risks [Member] Leverage Risk [Member] Daily Valuation Risk [Member] Valuation of Private Investments Risk [Member] Valuations Subject to Adjustment [Member] Indemnification of GP Stakes, Investment Managers and Others [Member] General Risks of Secondary Investments [Member] Force Majeure Risk [Member] Nature of Portfolio Companies [Member] Non-Diversification Risk [Member] New Fund Risk [Member] U.S. Government Securities Risk [Member] Valuation Risks [Member] Closed-end Interval Fund; Liquidity Risk [Member] Repurchase Risks [Member] Substantial Repurchases [Member] Possible Exclusion of a Shareholder Based on Certain Detrimental Effects [Member] Use of Cash or Money Market Investments [Member] Credit Risk [Member] Interest Rates Risk [Member] Secondary Transactions Risk [Member] Derivatives Risk [Member] Futures and Options Risk [Member] Commodities Related Investments Risk [Member] Mortgage-Related Instruments Risk [Member] Other Risks Relating to the Fund [Member] Venture Capital and Growth Equity Risk [Member] Investments in the Debt Securities of Small or Middle-Market Portfolio Companies Risk [Member] Substantial Fees and Expenses [Member] Distributions In-Kind [Member] Incentive Allocation Arrangements [Member] Inadequate Return [Member] Inside Information [Member] Recourse to the Fund’s Assets [Member] Currency Risk [Member] Emerging Markets Risk [Member] Equity Risk [Member] Special Purpose Acquisition Companies Risk [Member] Large Shareholder Transaction Risk [Member] Tax Risk [Member] Operational Risks Associated with Cybersecurity [Member] Other Investment Companies Risk [Member] Regulatory and Legal Risks [Member] LIMITS OF RISK DISCLOSURES [Member]