Line of Credit Facility, Increase in Credit Limit

No definition available.

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- Definition

The value of the collateral (typically cash) that the entity receives in a financing transaction in exchange for securities lent. This item represents a liability in the financial statements of the lender of the securities.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Balance Type:	debit
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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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Revolving Credit Facility - Narrative (Details) - USD ($)	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Line of Credit Facility [Line Items]
Credit facility outstanding balance	$ 856,322,000	$ 794,796,000
Debt financing costs	$ 18,842,000	22,975,000
Investments Held Benchmark \| Net Assets \| Affiliated Entity \| Prospect Capital Funding LLC
Line of Credit Facility [Line Items]
Percentage of total assets at fair value	38.00%
Revolving Credit Facility \| Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 2,121,500,000
Accordion feature, increase limit	$ 2,250,000,000
Basis spread	2.05%
Collateralized financings	$ 2,554,129,000
Remaining borrowing capacity	570,532,000	830,124,000
Credit facility outstanding balance	856,322,000	794,796,000
Debt issuance costs, gross	38,278,000
Debt financing costs	18,842,000	22,975,000
Interest expense	$ 68,300,000	$ 87,585,000	$ 64,851,000
Revolving Credit Facility \| Credit Facility \| More than 60% Drawn
Line of Credit Facility [Line Items]
Unused capacity fee rate	0.40%
Revolving Credit Facility \| Credit Facility \| More Than 35% and An Amount Less Than or Equal to 60%
Line of Credit Facility [Line Items]
Unused capacity fee rate	0.70%
Revolving Credit Facility \| Credit Facility \| Less Than 35% or Equal to 35%
Line of Credit Facility [Line Items]
Unused capacity fee rate	1.50%