Commitments and Contingencies - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Sep. 30, 2025
Commitments and Contingencies Disclosure [Abstract]
Unfunded Commitment	$ 957,189	$ 931,496
Investment company, financial support to investee contractually required, not provided, amount that can be drawn immediately		$ 918,900

Amount of financial support committed by investment company to investee that is contractually required but not provided.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480990/946-20-50-16

Name:	us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant