Common Stock [Member] Risks of Investing in CLOs and Other Structured Debt Securities [Member] Preferred Stock [Member] Revolving Credit Facility (BNP Paribas) [Member] Revolving Credit Facility (Societe Generale) [Member] Subordinated Securities Risk [Member] High-Yield Investment Risk [Member] Leverage Risk [Member] Credit Risk [Member] Key Personnel Risk [Member] Conflicts of Interest Risk [Member] Prepayment Risk [Member] Liquidity Risk [Member] Management Fee Risk [Member] Fair Valuation of the Company's Portfolio Investments [Member] Limited Investment Opportunities Risk [Member] Market Risk [Member] Loan Accumulation Facilities Risk [Member] Synthetic Investments Risk [Member] Infrastructure Sector Risk [Member] Asset-Based Finance Investments Risk [Member] Investments in Secured Debt [Member] Currency Risk [Member] Hedging Risk [Member] Reinvestment Risk [Member] Refinancing Risk [Member] Tax Risk [Member] Risks relating to the Convertible Perpetual Preferred Stock Conversion Feature [Member] Derivatives Risk [Member] Counterparty Risk [Member] Price Risk [Member] Non-U.S. Investing Risk [Member] Global Risk [Member] Banking Risk [Member] Series A Preferred Stocks [Member] Series A A Preferred Stocks [Member] Risks of Investing in CLOs and Other Structured Debt Securities [Member] Subordinated Securities Risk [Member] High-Yield Investment Risk [Member] Leverage Risk [Member] Key Personnel Risk [Member] Conflicts of Interest Risk [Member] Liquidity Risk [Member] Management Fee Risk [Member] Fair Valuation of the Company's Portfolio Investments [Member] Limited Investment Opportunities Risk [Member] Market Risk [Member] Banking Risk [Member] Loan Accumulation Facilities Risk [Member] Synthetic Investments Risk [Member] Currency Risk [Member] Hedging Risk [Member] Reinvestment Risk [Member] Refinancing Risk [Member] Tax Risk [Member] Counterparty Risk [Member] Price Risk [Member] Credit Risk [Member] Prepayment Risk [Member] Revolving Credit Facility (BNP Paribas) [Member] Revolving Credit Facility (Societe Generale) [Member] Series A Preferred Stocks [Member] Series B Preferred Stocks [Member] Series C Preferred Stocks [Member] Derivatives Risk [Member] Non-U.S. Investing Risk [Member] Global Risk [Member] Infrastructure Sector Risk. Asset-Based Finance Investments Risk. Investments in Secured Debt. Risks relating to the Convertible Perpetual Preferred Stock Conversion Feature.