This member stands for Concentration Risk. Concentration Risk [Member] This member stands for Convertible Securities Risk. Convertible Securities Risk [Member] Derivatives Risk Including Options, Futures And Swaps [Member] This member stands for Derivatives Risk (including Options, Futures and Swaps). Equity Linked Notes Risk [Member] This member stands for Equity-Linked Notes. This member stands for Equity Securities Risk. Equity Securities Risk [Member] This member stands for Foreign Securities Risk. Foreign Securities Risk [Member] This member stands for Key Personnel Risk. Key Personnel Risk [Member] Leverage Risks [Member] This member stands for Leverage Risk. This member stands for Market Events Risk. Market Events Risk [Member] This member stands for real estate investment trusts (REITs) and Real Estate Risk. Real Estate Investment Trusts And Real Estate Risk [Member] This member stands for Restricted Securities and Valuation Risk. Restricted Securities And Valuation Risk [Member] Risks Associated With Funds Option Strategy [Member] This member stands for Risks Associated with the Fund’s Option Strategy. This member stands for Sector Risk. Sector Risk [Member] Valuation Risk [Member] This member stands for Valuation Risk. Venture Capital Investments Risk [Member] This member stands for Venture Capital Investments Risk.