Common Shares [Member] Market Discount Risk [Member] Market Risk [Member] Asset Allocation Risk [Member] Management Risk [Member] Issuer Risk [Member] Mortgage Related and Other Asset Backed Instruments Risk [Member] Mortgage Related Derivative Instruments Risk [Member] Privately Issued Mortgage-Related Securities Risk [Member] High Yield Securities Risk [Member] Distressed and Defaulted Securities Risk [Member] Inflation Indexed Security Risk[Member] Senior Debt Risk [Member] Loans and Other Indebtedness Loan Acquisitions Participations and Assignments Risk [Member] Covenant lite Obligations Risk [Member] Loan Origination Risk [Member] Foreign Loan Originations Risk [Member] Subprime Risk [Member] Privacy and Data Security Risk [Member] Platform Risk [Member] Risk Retention Investment Risk [Member] Reinvestment Risk [Member] Securities Lending Risk [Member] Call Risk [Member] Foreign Non U S Investment Risk [Member] Investments in China [Member] Emerging Markets Risk [Member] Currency Risk [Member] U S Government Securities Risk [Member] Convertible Securities Risk [Member] Synthetic Convertible Securities Risk [Member] Contingent Convertible Securities Risk [Member] Valuation Risk [Member] Real Estate Risk [Member] Leverage Risk [Member] Short Exposure Risk [Member] Smaller Company Risk [Member] Derivatives Risk [Member] Credit Default Swaps Risk [Member] Counterparty Risk [Member] Equity Securities and Related Market Risk [Member] Preferred Securities Risk [Member] Confidential Information Access Risk [Member] Private Placements and Restricted Securities Risk [Member] Inflation Deflation Risk [Member] Regulatory Changes Risk [Member] Regulatory Risk LIBOR [Member] Regulatory Risk Commodity Pool Operator [Member] Investments in REITs Risk [Member] REIT Subsidiary Risk [Member] Real Estate Joint Venture Risk [Member] Private Commercial Real Estate Risk [Member] REIT Subsidiary Risk Tax Risk [Member] Liquidity Risk [Member] Tax Risk [Member] Subsidiary Risk [Member] Portfolio Turnover Risk [Member] Operational Risk [Member] Other Investment Companies Risk [Member] Cyber Security Risk [Member] Potential Conflicts of Interest Risk Allocation of Investment Opportunities[Member] Repurchase Agreements Risk [Member] Special Purpose Acquisition Companies SPACs Risk [Member] Structured Investments Risk [Member] Collateralized Bond Obligations Collateralized Loan Obligations and Collateralized Debt Obligations Risk [Member] Market Disruptions Risk [Member] Focused Investment Risk [Member] Zero Coupon Bond Step Ups and Payment in Kind Securities Risk [Member] Debt Securities Risk [Member] Sovereign Debt Risk [Member] Certain Affiliations [Member] Anti Takeover Provisions [Member] Distribution Rate Risk [Member] Credit Risks [Member]