Proceeds From Issuance of Unsecured Debt, Net

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- 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.

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Weighted average interest rate of debt outstanding.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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

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The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt.

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The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt.

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Prospect Capital InterNotes® - Narrative (Details) - USD ($)	3 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Jun. 30, 2026	Feb. 06, 2026	Feb. 13, 2020
Debt Instrument [Line Items]
Outstanding amount	$ 1,537,158,000		$ 1,878,595,000
Net loss on extinguishment of debt	1,483,000	$ (77,000)
Prospect Capital InterNotes®
Debt Instrument [Line Items]
Issuances of Prospect Capital InterNotes® (Note 7)	805,000	7,868,000
Repayments of unsecured debt	17,456,000	3,264,000
Prospect Capital InterNotes® \| Unsecured Debt
Debt Instrument [Line Items]
Outstanding amount	598,228,000		$ 614,879,000
Issuances of Prospect Capital InterNotes® (Note 7)	805,000	7,868,000
Net proceeds of issuance of debt	$ 793,000	$ 7,752,000
Weighted average interest rate	6.30%	7.42%
Net loss on extinguishment of debt	$ (50,000)	$ (77,000)
Interest expense	9,213,000	9,492,000
Prospect Capital InterNotes® \| Unsecured Debt \| In Accordance With Survivor’s Option \| Survivor’s Option
Debt Instrument [Line Items]
Repayments of unsecured debt	$ 2,174,000	$ 3,264,000
Prospect Capital InterNotes® \| Unsecured Debt \| With Weighted Average Interest Rate \| Survivor’s Option
Debt Instrument [Line Items]
Weighted average interest rate	2.42%
Repayments of unsecured debt	$ 15,282,000
Maximum \| Prospect Capital InterNotes® \| Unsecured Debt
Debt Instrument [Line Items]
Face amount				$ 1,000,000,000	$ 1,000,000,000
Stated rate	6.75%	8.00%
Minimum \| Prospect Capital InterNotes® \| Unsecured Debt
Debt Instrument [Line Items]
Stated rate	6.00%	6.25%