Gladstone Capital Corporation Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Cover
Financial Statements
Notes to Financial Statements
Accounting Policies
- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

SUBSEQUENT EVENTS - Narrative (Details)

v3.25.4

SUBSEQUENT EVENTS - Narrative (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended
	Feb. 03, 2026	Jan. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Sep. 30, 2025
Subsequent Event [Line Items]
Purchase of investments			$ 99,164	$ 151,616
Committed capital, unfunded			69,717		$ 66,396
Unused line of credit commitments
Subsequent Event [Line Items]
Committed capital, unfunded			48,867		54,553
Delayed draw term loans
Subsequent Event [Line Items]
Committed capital, unfunded			$ 20,850		$ 11,000
Subsequent Event \| Business Loan
Subsequent Event [Line Items]
Increase in borrowing capacity	$ 25,000
Vet’s Choice Radiology, LLC \| Subsequent Event
Subsequent Event [Line Items]
Net proceeds from the sale of investments		$ 42,800
Investment company, prepayment fee income		900
IMX Power Holdings Inc. \| Subsequent Event
Subsequent Event [Line Items]
Purchase of investments		6,000
IMX Power Holdings Inc. \| Subsequent Event \| Unused line of credit commitments
Subsequent Event [Line Items]
Committed capital, unfunded		1,500
IMX Power Holdings Inc. \| Subsequent Event \| Delayed draw term loans
Subsequent Event [Line Items]
Committed capital, unfunded		$ 3,000

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