Federated Hermes Sustainable High Yield Bond Fund Inc. S000009068 [Member] A C000024639 [Member] C C000024641 [Member] IS C000177177 [Member] R6 C000177176 [Member] Bloomberg US Aggregate Bond Index(reflects no deduction for fees, expenses, or taxes)[Member] Bloomberg US Corporate High Yield 2% Issuer Capped Index(reflects no deduction for fees, expenses or taxes)[Member] Lipper High Yield Funds Average[Member] Issuer Credit Risk [Member] Counterparty Risk [Member] Liquidity Risk [Member] Risk Associated with Noninvestment Grade Securities [Member] Risk Related to the Economy [Member] Environmental Social and Governance Risk [Member] Interest Rate Risk [Member] Call Risk [Member] Risk of Foreign Investing [Member] Currency Risk [Member] European Union and Eurozone Related Risk [Member] Risk of Investing in Emerging Market Countries [Member] Risk of Investing in Derivative Contracts and Hybrid Instruments [Member] Leverage Risk [Member] Exchange Traded Funds Risk [Member] Technology Risk [Member]