Significant Accounting Policies (Policies)	6 Months Ended
Significant Accounting Policies (Policies)	Jun. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	Federated Hermes, Inc. and its consolidated subsidiaries (collectively, Federated Hermes) provide investment advisory, administrative, distribution and other services to various investment products, including sponsored investment companies, collective funds and other funds (Federated Hermes Funds) and separate accounts (which include separately managed accounts, institutional accounts, certain sub-advised funds and other managed products, collectively Separate Accounts) in both domestic and international markets. In addition, Federated Hermes markets and provides stewardship and real estate development services to various domestic and international companies. The interim consolidated financial statements of Federated Hermes included herein (Consolidated Financial Statements) have been prepared in accordance with United States (U.S.) generally accepted accounting principles (GAAP). In the opinion of management, the financial statements reflect all adjustments that are of a normal recurring nature and necessary for a fair presentation of the results for the interim periods presented.
Use of Estimates	In preparing the Consolidated Financial Statements, management is required to make estimates and assumptions that affect the amounts reported therein and in the accompanying notes. Actual results may differ from those estimates, and such differences may be material to the Consolidated Financial Statements.
Recently Issued Accounting Guidance Not Yet Adopted	Recently Issued Accounting Guidance Not Yet Adopted Segment Reporting In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standard Update (ASU) No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. This ASU updates reportable segment disclosures by expanding the frequency and extent of segment disclosures. The update is effective for Federated Hermes for the December 31, 2024 Form 10-K, and for interim periods starting in fiscal year 2025. Early adoption is permitted and requires the retrospective adoption method. Management is currently evaluating this ASU to determine its impact on Federated Hermes’ disclosures. Income Taxes In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. This ASU updates income tax disclosures by requiring annual disclosures of disaggregated information, based on meeting a quantitative threshold, about a reporting entity’s effective tax rate reconciliation as well as information on income taxes paid. The update is effective for Federated Hermes for the December 31, 2025 Form 10-K, with early adoption permitted, and allows for either the prospective or retrospective adoption method. Management is currently evaluating this ASU to determine its impact on Federated Hermes’ disclosures. Management does not plan to early adopt this update and will elect the retrospective transition method.
Fair Value Measurements	Fair value is the price that would be received to sell an asset or the price that would be paid to transfer a liability as of the measurement date. A fair-value reporting hierarchy exists for disclosure of fair value measurements based on the observability of the inputs to the valuation of financial assets and liabilities. The levels are: Level 1 – Quoted prices for identical instruments in active markets. Level 1 assets can include equity and debt securities that are traded in an active exchange market, including shares of mutual funds. Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets. Level 2 assets and liabilities may include debt and equity securities, purchased loans and over-the-counter derivative contracts whose fair value is determined using a pricing model without significant unobservable market data inputs. Level 3 – Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable in active markets. NAV Practical Expedient – Investments that calculate NAV per share (or its equivalent) as a practical expedient. These investments have been excluded from the fair value hierarchy.