CONSOLIDATED SCHEDULE OF INVESTMENTS (Parenthetical Footnotes) - USD ($) $ in Millions	Dec. 31, 2023		Mar. 31, 2023
Schedule of Investments [Line Items]
Percentage of Net Assets at Fair Value	189.33%	[1],[2],[3],[4],[5],[6]	204.30%
Contribution percentage in non-qualified assets	14.50%		13.90%
Gross unrealized appreciation	$ 86.8		$ 72.3
Gross unrealized depreciation	72.0		76.8
Net unrealized appreciation (depreciation)	14.8		(4.5)
Cost of investments	$ 1,350.2		$ 1,210.8
Percent of total assets	95.50%		95.90%
Non-control/Non-affiliate investments
Schedule of Investments [Line Items]
Percent of investment assets	82.40%		80.10%
Percentage of Net Assets at Fair Value	156.00%		163.70%
Affiliate investments
Schedule of Investments [Line Items]
Percent of investment assets	13.60%		15.60%
Percentage of Net Assets at Fair Value	25.80%		31.90%
Control investments
Schedule of Investments [Line Items]
Percent of investment assets	4.00%		4.20%
Percentage of Net Assets at Fair Value	7.50%		8.70%
SOFR | Minimum
Schedule of Investments [Line Items]
Variable rate adjustment	0.00%		0.10%
SOFR | Maximum
Schedule of Investments [Line Items]
Variable rate adjustment	0.26161%		0.26161%

[1] All portfolio company headquarters are based in the United States, unless otherwise noted.

[2] Equity ownership may be held in shares or units of a company that is either wholly owned by the portfolio company or under common control by the same parent company to the portfolio company.

[3] Non-Control/Non-Affiliate investments are generally defined by the 1940 Act, as investments that are neither control investments nor affiliate investments. At December 31, 2023, the Company held $1,124.9 million of non-control/non-affiliate investments, which represented approximately 82.4% of the Company’s investment assets. The fair value of these investments as a percent of net assets is 156.0%.

[4] Affiliate investments are generally defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as control investments. At December 31, 2023, the Company held $186.0 million of affiliate investments, which represented approximately 13.6% of the Company’s investment assets. The fair value of these investments as a percent of net assets is 25.8%.

[5] All debt investments are income-producing, unless otherwise noted. Equity investments are non-income producing, unless otherwise noted.

[6] Control investments are generally defined by the 1940 Act as investments in which more than 25% of the voting securities are owned. At December 31, 2023, the Company held $54.2 million of control investments, which represented approximately 4.0% of the Company’s investment assets were . The fair value of these investments as a percent of net assets is 7.5%.