Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Capital commitments from investors	$ 616.3	$ 543.8
Undrawn capital commitments from investors	$ 156.1	$ 83.5

Amount of funds committed to investment company from investors.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 25
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478494/946-205-50-25

Name:	us-gaap_InvestmentCompanyCommittedCapital
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration