Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Investment income
Payment-in-kind interest income		$ 9,587	$ 5,382	$ 27,270	$ 14,325
Total investment income		154,720	95,626	438,550	268,154
Expenses
Interest and other debt financing expenses		39,487	23,278	109,988	60,389
Base management fee		18,997	19,025	56,747	54,545
Incentive fee		18,857	(4,096)	52,844	3,647
Professional fees		1,225	1,039	3,753	2,667
Administrative service fee		2,049	1,980	6,182	5,438
General and administrative expenses		327	472	957	1,214
Total expenses		80,942	41,698	230,471	127,900
Base management fee waived		0	0	0	(1,904)
Net expenses		80,942	41,698	230,471	125,996
Net investment income - before tax		73,778	53,928	208,079	142,158
Excise tax		0	0	2,432	0
Net investment income - after tax		73,778	53,928	205,647	142,158
Net realized gain (loss) from:
Net realized (gain) loss on investments				(46,555)	15,772
Foreign currency transactions		1,141	(165)	(28)	579
Forward currency contracts		2,021	1,080	3,192	1,080
Net realized gain (loss) on investment transactions		(41,923)	2,511	(43,391)	17,431
Net change in unrealized appreciation (depreciation) from:
Debt and equity securities, unrealized gain (loss)				(5,089)	(8,279)
Translation of assets and liabilities in foreign currencies		3,399	(13,482)	21,857	(18,942)
Forward currency contracts		(5,431)	11,922	(22,326)	14,059
Net change in unrealized appreciation (depreciation) on investment transactions		41,050	(40,555)	(5,558)	(13,162)
Net gain (loss) on investment transactions		(873)	(38,044)	(48,949)	4,269
(Provision) benefit for taxes on realized gain on investments		0	0	(207)	0
(Provision) benefit for taxes on unrealized appreciation on investments		78	(478)	576	(1,070)
Net increase (decrease) in net assets resulting from operations		$ 72,983	$ 15,406	$ 157,067	$ 145,357
Per Common Share Data
Basic earnings per common share (in dollars per share)		$ 0.43	$ 0.09	$ 0.92	$ 0.85
Diluted earnings per common share (in dollars per share)		0.43	0.09	0.92	0.85
Dividends and distributions declared per common share (in dollars per share)		$ 0.33	$ 0.30	$ 0.99	$ 0.90
Basic weighted average common shares outstanding (in shares)		169,980,131	170,895,670	170,570,633	170,600,061
Diluted weighted average common shares outstanding (in shares)		169,980,131	170,895,670	170,570,633	170,600,061
Non-controlled/non-affiliate company investments
Investment income
Interest income		$ 140,169	$ 88,530	$ 396,237	$ 248,934
Payment-in-kind interest income		9,248	4,863	24,654	13,233
Dividend income		4,058	52	12,097	372
Fee income		275	1,042	1,790	2,270
Total investment income		153,750	94,487	434,778	264,809
Net realized gain (loss) from:
Net realized (gain) loss on investments		(44,158)	1,596	(45,948)	16,798
Net change in unrealized appreciation (depreciation) from:
Debt and equity securities, unrealized gain (loss)		44,697	(38,809)	10,577	(3,351)
Non-controlled affiliate company investments
Investment income
Interest income		639	647	1,167	2,335
Payment-in-kind interest income		241	458	2,330	953
Fee income		16	0	59	0
Total investment income		896	1,105	3,556	3,288
Net realized gain (loss) from:
Net realized (gain) loss on investments		0	0	320	(1,026)
Net change in unrealized appreciation (depreciation) from:
Debt and equity securities, unrealized gain (loss)		(2,457)	(557)	(15,929)	(1,448)
Controlled affiliate company investments
Investment income
Interest income	[1]	(28)	(27)	(83)	(82)
Payment-in-kind interest income		98	61	286	139
Fee income		4	0	13	0
Total investment income		74	34	216	57
Net realized gain (loss) from:
Net realized (gain) loss on investments				(927)	0
Net change in unrealized appreciation (depreciation) from:
Debt and equity securities, unrealized gain (loss)		$ 842	$ 371	$ 263	$ (3,480)

[1] Negative interest income amounts are due to amortization of the GCIC acquisition purchase premium. Refer to Note 2 for additional details on the GCIC acquisition purchase premium.