1001 - Disclosure - N-2 - [Fee Table] link:presentationLink link:definitionLink link:calculationLink 1002 - Disclosure - N-2 - [Senior Securities] link:presentationLink link:definitionLink link:calculationLink 1003 - Disclosure - N-2 - [Investment Objectives] link:presentationLink link:definitionLink link:calculationLink 1004 - Disclosure - N-2 - [Risk Factors] link:presentationLink link:definitionLink link:calculationLink 1005 - Disclosure - N-2 - [Share Price Table] link:presentationLink link:definitionLink link:calculationLink 1006 - Disclosure - N-2 - [Capital Stock] link:presentationLink link:definitionLink link:calculationLink Series A Term Preferred Stock [Member] Series B Term Preferred Stock [Member] Series C Term Preferred Stock [Member] Series D Term Preferred Stock [Member] Series E Term Preferred Stock [Member] Series F Term Preferred Stock [Member] Series G Term Preferred Stock [Member] Common Shares [Member] Key Personnel Risk [Member] Conflicts of Interest Risk [Member] Accretable Yield Estimates of Our CLO Equity Investments [Member] Fair Valuation of Our Portfolio Investments [Member] Incentive Fee Risk [Member] Tax Risks [Member] Distributions and Dividend Risk [Member] Stock Dividend Risk [Member] Market Risks [Member] Events Outside Of the Company's Control [Member] Non-Diversification Risk [Member] Leverage Risk [Member] Risks of Investing in CLOs and Other Structured Finance Securities [Member] Risks of Investing in the Subordinated or Equity Tranche of CLOs [Member] First Loss Risk of CLO Equity and Subordinated Securities [Member] CLO Rating Downgrade Risk [Member] High Yield Investment Risks [Member] Limited Investment Opportunities Risk [Member] Credit Risks [Member] Prepayment Risks [Member] Liquidity Risks [Member] Counterparty Risks [Member] Loan Accumulation Facilities Risk [Member] Currency Risk [Member] Risks Related to Our Business and Structure [Member] Risks Related to Our Investments [Member] Risks Related to an Investment in Our Securities [Member]