Cover |
Jul. 31, 2025 |
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| Cover [Abstract] | |
| Entity Registrant Name | PROSPECT CAPITAL CORPORATION |
| Entity Address, Address Line One | 10 East 40th Street |
| Entity Address, City or Town | New York |
| Entity Address, Address Line Two | 42nd Floor |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10016 |
| Entity Central Index Key | 0001287032 |
| Amendment Flag | false |
| Document Type | POS EX |
| City Area Code | 212 |
| Local Phone Number | 448-0702 |
| Contact Personnel Name | John F. Barry III |
| No Substantive Changes, 462(c) | false |
| Exhibits Only, 462(d) | true |
| Entity Emerging Growth Company | false |
| Entity Well-known Seasoned Issuer | Yes |
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'. No definition available.
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- Definition Address Line 1 such as Attn, Building Name, Street Name No definition available.
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- Definition Address Line 2 such as Street or Suite number No definition available.
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- Definition Name of the City or Town No definition available.
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- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate if registrant meets the emerging growth company criteria. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Local phone number for entity. No definition available.
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- References Reference 1: http://www.xbrl.org/2003/role/presentationRef
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