Financial Highlights - Weighted-Average Yield (Details)	Mar. 31, 2025	Mar. 31, 2024
Investment Company [Abstract]
Weighted average portfolio yield on debt investments	14.40%	15.40%
Coupon income	11.60%	12.20%
Accretion of discount	1.20%	0.90%
Accretion of end-of-term payments	1.30%	1.60%
Impact of prepayments during the period	0.30%	0.70%

Rate of interest on investment.

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