v3.25.4

Debt - Additional Information (Details) - USD ($) $ in Thousands |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Feb. 06, 2019 | Feb. 05, 2019 | Feb. 28, 2025 | Oct. 31, 2021 | Apr. 30, 2021 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Asset coverage ratio requirement |  |  |  |  |  | 150.00% |  |
Credit facility payable |  |  |  |  |  | $ 425,477 | $ 460,361 |
Senior Securities |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Asset coverage ratio requirement | 150.00% | 200.00% |  |  |  | 163.00% | 164.00% |
Truist Credit Facility |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Annualized weighted average cost of debt |  |  |  |  |  | 6.50% | 7.20% |
Credit facility payable |  |  |  |  |  | $ 500,000 |  |
Outstanding borrowings |  |  |  |  |  | 426,500 | $ 461,500 |
Unused borrowing capacity |  |  |  |  |  | $ 73,500 | $ 13,500 |
Truist Credit Facility | SOFR |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis points |  |  |  |  |  | 235 |  |
Truist Credit Facility | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Truist credit facility |  |  | $ 475,000 |  |  | $ 750,000 |  |
Revolver |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Maturity date |  |  |  |  |  | Jul. 29, 2027 |  |
2026 Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount of notes issued |  |  |  |  | $ 150,000 |  |  |
Debt instrument, interest rate |  |  |  |  | 4.50% |  |  |
Debt instrument, effective percentage |  |  |  |  | 4.58% |  |  |
Percentage of public offering price per notes issued |  |  |  |  | 99.40% |  |  |
Debt instrument, periodic payment |  |  |  |  | semi-annually |  |  |
Debt instrument, maturity date |  |  |  |  | May 01, 2026 |  |  |
2026 Notes-2 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Annualized weighted average cost of debt |  |  |  |  |  | 6.10% | 6.50% | 6.00%
Aggregate principal amount of notes issued |  |  |  | $ 165,000 |  |  |  |
Debt instrument, interest rate |  |  |  | 4.00% |  |  |  |
Debt instrument, effective percentage |  |  |  | 4.14% |  |  |  |
Percentage of public offering price per notes issued |  |  |  | 99.40% |  |  |  |
Debt instrument, periodic payment |  |  |  | semi-annually |  |  |  |
Debt instrument, maturity date |  |  |  | Nov. 01, 2026 |  |  |  |
SBA Debentures |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debentures outstanding |  |  |  |  |  | $ 0 | $ 0 |
Market driven spread period |  |  |  |  |  | 10 years |  |
SBA Debentures | SBIC |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Maximum Borrowing Capacity |  |  |  |  |  | $ 175,000 |  |
SBA Debentures | Group of SBICs |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Maximum Borrowing Capacity |  |  |  |  |  | 350,000 |  |
SBA Debentures | SBIC II |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Equity capital |  |  |  |  |  | $ 75,000 |  |

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- Definition Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481664/323-10-45-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(10)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 25 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 + Details
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- 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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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