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v3.25.3

Borrowings - SBA-Guaranteed Debentures, Narrative (Details) $ in Thousands |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Aug. 29, 2025 USD ($) | Feb. 28, 2025 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Debt Instrument [Line Items] |  |  |  |  |
Repayment of SBA-guaranteed debentures |  |  | $ 103,795 | $ 0 |
SBA-guaranteed debentures outstanding |  |  | $ 196,205 |  | $ 300,000
Upfront fees percentage |  |  | 0.03435 |  |
Commitment fee percentage |  |  | 0.0100 |  |
Issuance discount percentage |  |  | 0.02435 |  |
SBIC I |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Regulatory capital |  |  | $ 75,000 |  | 75,000
SBA-guaranteed debentures outstanding |  |  | 46,205 |  | 150,000
SBIC II |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Regulatory capital |  |  | 75,000 |  | 75,000
SBA-guaranteed debentures outstanding |  |  | 150,000 |  | $ 150,000
SBIC III |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Regulatory capital |  |  | $ 3,375 |  |
SBA-guaranteed debentures |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Term of debt |  |  | 10 years |  |
Repayment of SBA-guaranteed debentures | $ 66,295 | $ 37,500 |  |  |
Debt instrument, variable interest rate, type [Extensible Enumeration] |  |  | Federal Home Loan Bank Of Chicago's Fixed Regular Advance Rate ("Bank Advance Rate") [Member] |  |
Interest rate margin |  |  | 0.41% |  |

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