Transactions with Controlled Companies - Pacific World Corporation (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Jun. 30, 2026
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Interest Income	$ 132,608	$ 152,394
Structuring Fee	10,605	1,299
Total Other Income	13,658	1,657
Interest Receivable	23,039		$ 17,350
Reportable Legal Entities \| Subsidiaries \| Pacific World Corporation
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Interest Income	2,499	2,522
Structuring Fee	0	175
Total Other Income	0	175
Additions	0	7,000
Interest Income Capitalized as PIK	2,094	$ 2,086
Interest Receivable	28		27
Other Receivables	$ 217		$ 197
Reportable Legal Entities \| Subsidiaries \| Pacific World Corporation
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Preferred equity ownership interest	100.00%		100.00%
Ownership interest	99.99%		99.99%

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