Management Risk [Member] Market Risk [Member] Risk of Loss or Total Loss [Member] Issuer and Non-Diversification Risk [Member] Capital Markets Risk [Member] Repurchase Policy Risks [Member] Liquidity Risk [Member] Delay in Use of Proceeds Risk [Member] Distributions Risk [Member] Illiquid Investment Risk [Member] Valuation Risk [Member] Real Estate Industry Concentration Risk [Member] Risks of Investing in the Equity of Private REITs [Member] Mortgage Loan Risk [Member] Mortgage-Backed Securities Risk [Member] Fixed Income Risk [Member] Convertible Securities Risk [Member] Interest Rates Risk [Member] Below Investment Grade (High Yield or Junk) Securities Risk [Member] Preferred Securities Risk [Member] Foreign Investment Risks [Member] Exchange-Traded Funds, Closed-End Funds and Mutual Funds Risk [Member] “Covenant-lite” Obligations Risk [Member] Loans and Other Indebtedness; Loan Participations and Assignments Risk [Member] Loan Origination Risk [Member] Leverage Risk [Member] Derivatives Risk [Member] Short Sales Risk [Member] Hedging Transactions Risk [Member] Risks Related to the Fund’s Tax Status as a REIT [Member] Risk of Effect of Fees and Expenses on Returns [Member] Competition Risk [Member] Risk of Long-Term Objective; Not a Complete Investment Program [Member] Cyber Security Risk [Member] Temporary Defensive Position [Member] Limits of Risk Disclosures [Member]