Financial Highlights and Senior Securities - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Investment Company [Abstract]
Aggregate indebtedness	$ 23,366,487	$ 26,842,239

Debt, Long-Term and Short-Term, Combined Amount, Gross

No definition available.

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Balance Type:	credit
Period Type:	instant