Risks Related to Our Business and Structure [Member] Risks Related to an Investment in Our Shares of Beneficial Interest [Member] Risks Related to Our Adviser and Its Affiliates [Member] Risks Related to Our Investments [Member] Risks Related to Debt Financing [Member] U.S. Federal Income Tax Risks [Member] Shares of Beneficial Interest [Member] 6.00% Series A Cumulative Term Preferred Shares due 2029 [Member] 5.85% Series B Cumulative Term Preferred Shares due 2029 [Member]