v3.26.1
Shareholder Report
 6 Months Ended
Jun. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Federated Hermes Core Trust
Entity Central Index Key 0001034106
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2026
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
C000024828  
Shareholder Report [Line Items]  
Fund Name Mortgage Core Fund
No Trading Symbol [Flag] true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Mortgage Core Fund (the "Fund") for the period of January 1, 2026 to June 30, 2026.
Additional Information [Text Block] You can find additional information at FederatedHermes.com/us/products.do?productType=10. 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/us/products.do?productType=10
Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Fund Name
Costs of a $10,000 investment
Costs paid as an annualized percentage of a $10,000 investment
Mortgage Core Fund
$1
0.02%
Expenses Paid, Amount $ 1
Expense Ratio, Percent 0.02%
AssetsNet $ 5,334,617,730
Holdings Count | Holding 464
InvestmentCompanyPortfolioTurnover 114.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics

  • Net Assets$5,334,617,730
  • Number of Investments464
  • Portfolio Turnover114%
  • Portfolio Turnover (excluding purchases and sales from dollar-roll transactions)7%
Holdings [Text Block]

Top Security Types (% of Net Assets)

Group By Sector Chart
Table Summary
Value
Value
Asset-Backed Securities
1.1%
Non-Agency Mortgage-Backed Securities
1.1%
Commercial Mortgage-Backed Securities
1.4%
Cash Equivalents
4.9%
Collateralized Mortgage Obligations
15.6%
Mortgage-Backed Securities
95.7%
Material Fund Change [Text Block]
C000024830  
Shareholder Report [Line Items]  
Fund Name High Yield Bond Core Fund
No Trading Symbol [Flag] true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the High Yield Bond Core Fund (the "Fund") for the period of January 1, 2026 to June 30, 2026.
Additional Information [Text Block] You can find additional information at FederatedHermes.com/us/products.do?productType=10. 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/us/products.do?productType=10
Expenses [Text Block]

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Fund Name
Costs of a $10,000 investment
Costs paid as an annualized percentage of a $10,000 investment
High Yield Bond Core Fund
$2
0.04%
Expenses Paid, Amount $ 2
Expense Ratio, Percent 0.04%
AssetsNet $ 1,069,407,821
Holdings Count | Holding 478
InvestmentCompanyPortfolioTurnover 14.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics

  • Net Assets$1,069,407,821
  • Number of Investments478
  • Portfolio Turnover14%
Holdings [Text Block]

Top Index Classifications (% of Net Assets)

Group By Sector Chart
Table Summary
Value
Value
Independent Energy
3.5%
Automotive
3.7%
Gaming
3.9%
Building Materials
4.0%
Chemicals
4.0%
Cable Satellite
4.9%
Health Care
5.0%
Midstream
5.8%
Insurance - P&C
8.9%
Technology
16.8%
Material Fund Change [Text Block]