| Shareholder Report | 6 Months Ended |
| Jun. 30, 2024 USD ($) Holding |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | FEDERATED HERMES INSURANCE SERIES |
| Entity Central Index Key | 0000912577 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| C000026775 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes Fund for U.S. Government Securities II |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes Fund for U.S. Government Securities II (the "Fund") for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B17"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Federated Hermes Fund for U.S. Government Securities II $39 0.78% |
| Expenses Paid, Amount | $ 39 |
| Expense Ratio, Percent | 0.78% |
| AssetsNet | $ 76,506,728 |
| Holdings Count | Holding | 172 |
| InvestmentCompanyPortfolioTurnover | 10% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $76,506,728 Number of Investments 172 Portfolio Turnover 10% Portfolio Turnover (excluding sales from dollar-roll transactions) 7% |
| Holdings [Text Block] | Top Security Types (% of Net Assets) Value Value Cash Equivalents 1.4% U.S. Government Agency Securities 1.6% Non-Agency Mortgage-Backed Securities 2.6% U.S. Government Agency Commercial Mortgage-Backed Securities 4.3% Asset-Backed Securities 5.3% U.S. Treasury Securities 15.8% U.S. Government Agency Mortgage-Backed Securities 69.4% |
| Material Fund Change [Text Block] | |
| C000026768 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes Government Money Fund II |
| Class Name | Service Shares |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes Government Money Fund II (the "Fund") for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B35"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Service Shares $32 0.63% |
| Expenses Paid, Amount | $ 32 |
| Expense Ratio, Percent | 0.63% |
| AssetsNet | $ 82,578,188 |
| Holdings Count | Holding | 88 |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $82,578,188 Number of Investments 88 |
| Holdings [Text Block] | Top Security Types (% of Net Assets) Value Value U.S. Treasury Securities 14.3% U.S. Government Agency Securities 15.5% Repurchase Agreements 70.1% |
| Material Fund Change [Text Block] | |
| C000026776 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes High Income Bond Fund II |
| Class Name | Primary Shares |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes High Income Bond Fund II (the "Fund") for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B52"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Primary Shares $41 0.81% |
| Expenses Paid, Amount | $ 41 |
| Expense Ratio, Percent | 0.81% |
| AssetsNet | $ 117,895,957 |
| Holdings Count | Holding | 468 |
| InvestmentCompanyPortfolioTurnover | 17% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $117,895,957 Number of Investments 468 Portfolio Turnover 17% |
| Holdings [Text Block] | Top Index Classification (% of Net Assets) Value Value Independent Energy 3.8% Building Materials 3.9% Consumer Cyclical Services 4.0% Gaming 4.6% Health Care 4.8% Packaging 5.0% Cable Satellite 5.8% Automotive 6.2% Midstream 6.3% Insurance - P&C 8.3% Technology 12.2% |
| Material Fund Change [Text Block] | |
| C000026777 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes High Income Bond Fund II |
| Class Name | Service Shares |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes High Income Bond Fund II (the "Fund") for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B70"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Service Shares $53 1.06% |
| Expenses Paid, Amount | $ 53 |
| Expense Ratio, Percent | 1.06% |
| AssetsNet | $ 117,895,957 |
| Holdings Count | Holding | 468 |
| InvestmentCompanyPortfolioTurnover | 17% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $117,895,957 Number of Investments 468 Portfolio Turnover 17% |
| Holdings [Text Block] | Top Index Classification (% of Net Assets) Value Value Independent Energy 3.8% Building Materials 3.9% Consumer Cyclical Services 4.0% Gaming 4.6% Health Care 4.8% Packaging 5.0% Cable Satellite 5.8% Automotive 6.2% Midstream 6.3% Insurance - P&C 8.3% Technology 12.2% |
| Material Fund Change [Text Block] | |
| C000026779 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes Kaufmann Fund II |
| Class Name | Primary Shares |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes Kaufmann Fund II (the "Fund") for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B88"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Primary Shares $80 1.54% |
| Expenses Paid, Amount | $ 80 |
| Expense Ratio, Percent | 1.54% |
| AssetsNet | $ 122,227,991 |
| Holdings Count | Holding | 167 |
| InvestmentCompanyPortfolioTurnover | 18% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $122,227,991 Number of Investments 167 Portfolio Turnover 18% |
| Holdings [Text Block] | Top Sectors – Equity (% of Total Net Assets) Value Value Energy 1.1% Utilities 1.4% Consumer Staples 2.1% Communication Services 2.6% Real Estate 4.1% Materials 4.6% Financials 9.6% Consumer Discretionary 12.2% Industrials 14.6% Information Technology 17.1% Health Care 30.2% |
| Material Fund Change [Text Block] | |
| C000026780 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes Kaufmann Fund II |
| Class Name | Service Shares |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes Kaufmann Fund II (the "Fund") for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B106"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Service Shares $93 1.79% |
| Expenses Paid, Amount | $ 93 |
| Expense Ratio, Percent | 1.79% |
| AssetsNet | $ 122,227,991 |
| Holdings Count | Holding | 167 |
| InvestmentCompanyPortfolioTurnover | 18% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $122,227,991 Number of Investments 167 Portfolio Turnover 18% |
| Holdings [Text Block] | Top Sectors – Equity (% of Total Net Assets) Value Value Energy 1.1% Utilities 1.4% Consumer Staples 2.1% Communication Services 2.6% Real Estate 4.1% Materials 4.6% Financials 9.6% Consumer Discretionary 12.2% Industrials 14.6% Information Technology 17.1% Health Care 30.2% |
| Material Fund Change [Text Block] | |
| C000026773 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes Managed Volatility Fund II |
| Class Name | Primary Shares |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes Managed Volatility Fund II (the "Fund") for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B124"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Primary Shares $49 0.95% |
| Expenses Paid, Amount | $ 49 |
| Expense Ratio, Percent | 0.95% |
| AssetsNet | $ 181,978,551 |
| Holdings Count | Holding | 681 |
| InvestmentCompanyPortfolioTurnover | 30% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $181,978,551 Number of Investments 681 Portfolio Turnover 30% |
| Holdings [Text Block] | Top Security Types (% of Net Assets) Value Value Foreign Governments/Agencies 0.1% Purchased Put Options 0.2% Bank Loan Core Fund 0.3% Federated Hermes High Income Bond Fund II, Class P 1.6% Emerging Markets Core Fund 1.7% International Equity Securities 2.5% Project and Trade Finance Core Fund 2.7% Cash Equivalents 3.9% Domestic Equity Securities 39.7% Domestic Fixed Income Securities 47.5% |
| Material Fund Change [Text Block] | |
| C000199834 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes Managed Volatility Fund II |
| Class Name | Service Shares |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes Managed Volatility Fund II (the "Fund") for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B142"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Service Shares $62 1.20% |
| Expenses Paid, Amount | $ 62 |
| Expense Ratio, Percent | 1.20% |
| AssetsNet | $ 181,978,551 |
| Holdings Count | Holding | 681 |
| InvestmentCompanyPortfolioTurnover | 30% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $181,978,551 Number of Investments 681 Portfolio Turnover 30% |
| Holdings [Text Block] | Top Security Types (% of Net Assets) Value Value Foreign Governments/Agencies 0.1% Purchased Put Options 0.2% Bank Loan Core Fund 0.3% Federated Hermes High Income Bond Fund II, Class P 1.6% Emerging Markets Core Fund 1.7% International Equity Securities 2.5% Project and Trade Finance Core Fund 2.7% Cash Equivalents 3.9% Domestic Equity Securities 39.7% Domestic Fixed Income Securities 47.5% |
| Material Fund Change [Text Block] | |
| C000026769 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes Quality Bond Fund II |
| Class Name | Primary Shares |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes Quality Bond Fund II (the "Fund") for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B160"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Primary Shares $37 0.74% |
| Expenses Paid, Amount | $ 37 |
| Expense Ratio, Percent | 0.74% |
| AssetsNet | $ 141,527,759 |
| Holdings Count | Holding | 383 |
| InvestmentCompanyPortfolioTurnover | 10% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $141,527,759 Number of Investments 383 Portfolio Turnover 10% |
| Holdings [Text Block] | Top Security Types (% of Net Assets) Value Value Mortgage-Backed Securities 0.0% Footnote Reference Securities Lending Collateral 0.9% Repurchase Agreements 2.1% Corporate Bonds 96.8% Footnote Description Footnote * Represents less than 0.1%. |
| Material Fund Change [Text Block] | |
| C000026770 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes Quality Bond Fund II |
| Class Name | Service Shares |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Federated Hermes Quality Bond Fund II (the "Fund") for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B178"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-decoration: underline solid rgb(0, 0, 0);">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Service Shares $49 0.99% |
| Expenses Paid, Amount | $ 49 |
| Expense Ratio, Percent | 0.99% |
| AssetsNet | $ 141,527,759 |
| Holdings Count | Holding | 383 |
| InvestmentCompanyPortfolioTurnover | 10% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $141,527,759 Number of Investments 383 Portfolio Turnover 10% |
| Holdings [Text Block] | Top Security Types (% of Net Assets) Value Value Mortgage-Backed Securities 0.0% Footnote Reference Securities Lending Collateral 0.9% Repurchase Agreements 2.1% Corporate Bonds 96.8% Footnote Description Footnote * Represents less than 0.1%. |
| Material Fund Change [Text Block] | |
