Anti-Takeover Provisions Risk [Member] Anti Takeover Provisions Risk [Member] Anti Takeover Provisions Risk [Member] Characteristics Of Options And Futures Risk [Member] Characteristics Of Options And Futures Risk [Member] Committed Facility Agreement [Member] Information about committed facility agreement. Common Share [Member] Common Share [Member] Common Shares [Member] Common Shares [Member] Common Stock Risk [Member] Common Stock Risk [Member] Concentration Risk [Member] Concentration Risk [Member] Convertible Securities Risk [Member] Convertible Securities Risk [Member] Cybersecurity Risk [Member] Cybersecurity Risk [Member] Defensive Positions Risk [Member] Defensive Positions Risk [Member] Derivative Investments Risk [Member] Derivative Investments Risk [Member] Dividend Strategy Risk [Member] Dividend Strategy Risk [Member] Emerging Markets Risk [Member] Emerging Markets Risk [Member] ESG Integration Risk [Member] Environmental, Social And Governance Integration Risk [Member] Environmental, Social And Governance Integration Risk [Member] Equity Securities Risk [Member] Equity Securities Risk [Member] Fee For Open Market Purchases Of Common Shares [Member] Fee For Open Market Purchases Of Common Shares [Member] Fee For Optional Shares Purchases [Member] Fee For Optional Shares Purchases [Member] Fixed Income Securities Risk [Member] Fixed Income Securities Risk [Member] Foreign Currency Exposure Risk [Member] Foreign Currency Risk [Member] Foreign Securities Risk [Member] Foreign Securities Risk [Member] Illiquid Securities Risk [Member] Illiquid Securities Risk [Member] Inflation Risk [Member] Inflation Risk [Member] Interest Rate Risk [Member] Interest Rates Risk [Member] Interest Rates Risk [Member] Investment And Market Risk [Member] Investment And Market Risk [Member] Investments In Undervalued Securities Risk [Member] Investments In Undervalued Securities Risk [Member] Issuer Risk [Member] Issuer Risk [Member] Leverage Risk [Member] Leverage Risk [Member] Line Of Credit Payable [Member] Line Of Credit Payable [Member] Management Risk [Member] Management Risk [Member] Market Events Risk [Member] Market Events Risk [Member] Market Price Of Shares Risk [Member] Market Price Of Shares Risk [Member] Mid Cap Securities Risk [Member] Mid-Cap Securities Risk [Member] Mid-Cap Securities Risk [Member] Non United States Taxation Risk [Member] Non United States Taxation Risk [Member] Non-U.S. Taxation Risk [Member] Notes [Member] Notes [Member] Passive Foreign Investment Company Tax Risk [Member] Passive Foreign Investment Company Tax Risk [Member] Preferred Securities Risk [Member] Preferred Securities Risk [Member] Preferred Shares [Member] Preferred Shares [Member] Qualified Dividend Income Tax Risk [Member] Qualified Dividend Income Tax Risk [Member] Real Estate Investment Trusts Risk [Member] REIT and Real Estate Risk [Member] Real Estate Investment Trusts Risk [Member] Real Estate Securities Risk [Member] Real Estate Securities Risk [Member] Sales Of Shares Held In Dividend Reinvestment Account [Member] Sales Of Shares Held In Dividend Reinvestment Account [Member] Short Sale Risk [Member] Short Sale Risk [Member] Small And Medium Capitalization Company Risk [Member] Small And Medium Capitalization Company Risk [Member] Small Cap Securities Risk [Member] Small-Cap Securities Risk [Member] Small-Cap Securities Risk [Member] Special Associated With Foreign Currency Futures Contracts And Related Options Risk [Member] Special Associated With Foreign Currency Futures Contracts And Related Options Risk [Member] Special Associated With Foreign Currency Options Risk [Member] Special Associated With Foreign Currency Options Risk [Member] Transaction Fee Of One One Nine Percent Of Offering Price [Member] Transaction Fee Of One One Nine Percent Of Offering Price [Member] Valuation Risk [Member] Valuation Risk [Member] Class of Stock [Domain] Debt Instrument Name [Domain]