v3.25.2
Fees and Expenses
Jul. 25, 2025
T. Rowe Price Institutional Floating Rate Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the fund. You may also incur brokerage commissions and other charges when buying or selling shares of the fund, which are not reflected in the table or example below.
Operating Expenses Caption [Optional Text] Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]

Management fees  0.55 %  0.55 %  0.55 %  
                 
Other expenses  0.02    0.14    0.02    
                 
Total annual fund operating expenses  0.57    0.69    0.57    
                 
Fee waiver/expense reimbursement —    —    (0.55 )a   
                 
Total annual fund operating expenses after fee waiver/expense reimbursement  0.57    0.69   0.02 a   
Expense Footnotes [Text Block]

               
a  T. Rowe Price Associates, Inc., has contractually agreed to waive and/or bear all the Z Class’ expenses (excluding interest; expenses related to borrowings, taxes, and brokerage; nonrecurring, extraordinary expenses; and acquired fund fees and expenses) in their entirety. T. Rowe Price Associates, Inc., expects this fee waiver and/or expense reimbursement arrangement to remain in place indefinitely, and the agreement may only be amended or terminated with approval by the fund’s Board of Directors.
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that your investment has a 5% return each year, and that the fund’s operating expenses remain the same. The example also assumes that any current expense limitation arrangement remains in place for the period noted in the previous table; therefore, the figures have been adjusted to reflect fee waivers or expense reimbursements only in the periods for which the expense limitation arrangement is expected to continue. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

 
Expense Example, With Redemption [Table]
  1 Year  3 Years  5 Years  10 Years 
 Investor Class $58  $183  $318  $714 
 F Class  70   221   384   859 
 Z Class  2   6   11   26 

 

 

 
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the fund’s shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 107.3% of the average value of its portfolio.
Portfolio Turnover, Rate 107.30%
T. Rowe Price Institutional High Yield Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the fund. You may also incur brokerage commissions and other charges when buying or selling shares of the fund, which are not reflected in the table or example below.
Operating Expenses Caption [Optional Text] Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]

Fees and Expenses of the Fund      

Annual fund operating expenses
(expenses that you pay each year as a
percentage of the value of your investment)

  
Management fees  0.50 %  
         
Other expenses   —    
         
Total annual fund operating expenses  0.50    
         
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that your investment has a 5% return each year, and that the fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
  1 Year     3 Years     5 Years     10 Years    
  $ 51   $ 160   $ 280   $ 628    
                                   
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the fund’s shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 40.9% of the average value of its portfolio.
Portfolio Turnover, Rate 40.90%
T. Rowe Price Institutional Long Duration Credit Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the fund. You may also incur brokerage commissions and other charges when buying or selling shares of the fund, which are not reflected in the table or example below.
Operating Expenses Caption [Optional Text] Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]

 

Fees and Expenses of the Fund

         
Annual fund operating expenses
(expenses that you pay each year as a
percentage of the value of your investment)		  
Management fees  0.45 %  
         
Other expenses   —    
         
Total annual fund operating expenses  0.45    
         
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that your investment has a 5% return each year, and that the fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
  1 Year     3 Years     5 Years     10 Years  
  $ 46   $ 144   $ 252   $ 567  
                                 
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the fund’s shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 68.3% of the average value of its portfolio.
Portfolio Turnover, Rate 68.30%