Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Operating activities:
Net increase (decrease) in net assets resulting from operations	$ 77,018	$ 76,780
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash used in operating activities:
Net unrealized (appreciation) depreciation	32,141	(963)
Net realized (gains) losses	(6,953)	(3,677)
PIK interest income	(1,836)	(2,695)
PIK dividend income	(223)	0
Accretion of original issue discount on investments	(8,719)	(11,092)
Accretion of original issue discount on unsecured notes payable	211	207
Amortization of deferred financing costs	1,927	1,926
Amortization of deferred offering costs	474	367
Deferred taxes	87	45
Purchases of investments	(825,682)	(942,180)
Proceeds from the sales and repayments of investments	281,180	483,080
Changes in operating assets and liabilities:
(Increase) decrease in due from Portfolio Companies	(35,452)	0
(Increase) decrease in due from affiliates	(1,029)	0
(Increase) decrease in interest receivable	3,033	(2,865)
(Increase) decrease in receivables from unsettled transactions	12,873	(51,542)
(Increase) decrease in due from broker	1,970	(3,680)
(Increase) decrease in other assets	347	150
Increase (decrease) in accounts payable, accrued expenses and other liabilities	901	(363)
Increase (decrease) in base management fee and incentive fees payable	(360)	822
Increase (decrease) in due to broker	4,030	(4,040)
Increase (decrease) in due to affiliates	(2,047)	(334)
Increase (decrease) in interest payable	918	(20)
Increase (decrease) in payables from unsettled transactions	(45,543)	(67,029)
Increase (decrease) in director fees payable	0	(116)
Net cash used in operating activities	(510,734)	(527,219)
Financing activities:
Distributions paid in cash	(77,443)	(57,237)
Borrowings under credit facilities	525,000	345,000
Repayments of borrowings under credit facilities	(270,000)	(130,000)
Proceeds from issuance of common shares	315,482	251,493
Deferred financing costs paid	0	(92)
Deferred offering costs paid	(68)	(814)
Share repurchases paid	(61,018)	(14,635)
Net cash provided by financing activities	431,953	393,715
Effect of exchange rate changes on foreign currency	(269)	(1,238)
Net increase (decrease) in cash and cash equivalents and restricted cash	(79,050)	(134,742)
Cash and cash equivalents and restricted cash, beginning of period	260,406	524,164
Cash and cash equivalents and restricted cash, end of period	181,356	389,422
Supplemental information:
Cash paid for interest	43,397	40,307
Non-cash financing activities:
Deferred offering costs incurred	129	384
Distribution payable	37,135	28,389
Reinvestment of dividends during the period	29,550	23,524
Shares repurchases accrued but not yet paid	$ 191,101	$ 20,910