v3.26.3
Shareholder Report
6 Months Ended
Aug. 31, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Federated Hermes ETF Trust
Entity Central Index Key 0001849998
Entity Investment Company Type N-1A
Document Period End Date Aug. 31, 2026
C000251148 [Member]  
Shareholder Report [Line Items]  
Fund Name Federated Hermes MDT Large Cap Core ETF
Class Name Federated Hermes MDT Large Cap Core ETF
Trading Symbol FLCC
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Federated Hermes MDT Large Cap Core ETF (the “Fund”) for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at FederatedHermes.com/FundInformation. You can also request this information by contacting us at 1‑800‑341‑7400, Option 4, or your financial advisor.
Additional Information Phone Number 1‑800‑341‑7400
Additional Information Website FederatedHermes.com/FundInformation
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund Name Costs of a $10,000 investment Costs paid as an annualized percentage of a $10,000 investment
Federated Hermes MDT Large Cap
Core ETF
$16 0.29%
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.29%
Net Assets $ 133,337,255
Holdings Count | Holding 151
Investment Company Portfolio Turnover 42.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Net Assets $133,337,255
Number of Investments 151
Portfolio Turnover 42%
Holdings [Text Block]
Fund Holdings
Top Sectors
(% of Net Assets)
Graphical Representation - Allocation 1 Chart
C000251149 [Member]  
Shareholder Report [Line Items]  
Fund Name Federated Hermes MDT Large Cap Growth ETF
Class Name Federated Hermes MDT Large Cap Growth ETF
Trading Symbol FLCG
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Federated Hermes MDT Large Cap Growth ETF (the “Fund”) for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at FederatedHermes.com/FundInformation. You can also request this information by contacting us at 1‑800‑341‑7400, Option 4, or your financial advisor.
Material Fund Change Notice [Text Block]
This report describes changes made to the Fund during the reporting period.
Additional Information Phone Number 1‑800‑341‑7400
Additional Information Website FederatedHermes.com/FundInformation
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund Name Costs of a $10,000 investment Costs paid as an annualized percentage of a $10,000 investment
Federated Hermes MDT Large Cap Growth ETF $21 0.39%
Expenses Paid, Amount $ 21
Expense Ratio, Percent 0.39%
Net Assets $ 617,293,768
Holdings Count | Holding 100
Investment Company Portfolio Turnover 53.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Net Assets $617,293,768
Number of Investments 100
Portfolio Turnover 53%
Holdings [Text Block]
Fund Holdings
Top Sectors
(% of Net Assets)
Graphical Representation - Allocation 1 Chart
C000251150 [Member]  
Shareholder Report [Line Items]  
Fund Name Federated Hermes MDT Large Cap Value ETF
Class Name Federated Hermes MDT Large Cap Value ETF
Trading Symbol FLCV
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Federated Hermes MDT Large Cap Value ETF (the “Fund”) for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at FederatedHermes.com/FundInformation. You can also request this information by contacting us at 1‑800‑341‑7400, Option 4, or your financial advisor.
Additional Information Phone Number 1‑800‑341‑7400
Additional Information Website FederatedHermes.com/FundInformation
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund Name Costs of a $10,000 investment Costs paid as an annualized percentage of a $10,000 investment
Federated Hermes MDT Large Cap Value ETF $17 0.32%
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.32%
Net Assets $ 139,828,920
Holdings Count | Holding 126
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Net Assets $139,828,920
Number of Investments 126
Portfolio Turnover 45%
Holdings [Text Block]
Fund Holdings
Top Sectors
(% of Net Assets)
Graphical Representation - Allocation 1 Chart
C000251151 [Member]  
Shareholder Report [Line Items]  
Fund Name Federated Hermes MDT Small Cap Core ETF
Class Name Federated Hermes MDT Small Cap Core ETF
Trading Symbol FSCC
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Federated Hermes MDT Small Cap Core ETF (the “Fund”) for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at FederatedHermes.com/FundInformation. You can also request this information by contacting us at 1‑800‑341‑7400, Option 4, or your financial advisor.
Additional Information Phone Number 1‑800‑341‑7400
Additional Information Website FederatedHermes.com/FundInformation
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund Name Costs of a $10,000 investment Costs paid as an annualized percentage of a $10,000 investment
Federated Hermes MDT Small Cap
Core ETF
$19 0.36%
Expenses Paid, Amount $ 19
Expense Ratio, Percent 0.36%
Net Assets $ 363,453,453
Holdings Count | Holding 311
Investment Company Portfolio Turnover 38.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Net Assets $363,453,453
Number of Investments 311
Portfolio Turnover 38%
Holdings [Text Block]
Fund Holdings
Top Sectors
(% of Net Assets)
Graphical Representation - Allocation 1 Chart