Borrowings - SBA-Guaranteed Debentures, Narrative (Details) $ in Thousands	9 Months Ended
Sep. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)
Debt Instrument [Line Items]
SBA-guaranteed debentures	$ 120,000	$ 196,205
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	0	46,205
SBIC II
Debt Instrument [Line Items]
Regulatory capital	75,000	75,000
SBA-guaranteed debentures	120,000	150,000
SBIC III
Debt Instrument [Line Items]
Regulatory capital	3,375	3,375
SBA-guaranteed debentures	$ 0	$ 0
SBA-guaranteed debentures
Debt Instrument [Line Items]
Term of debt	10 years
Basis spread on variable rate	0.41%

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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