CONSOLIDATED SCHEDULE OF INVESTMENTS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2025		Mar. 31, 2025
Schedule of Investments [Line Items]
Investments at fair value	$ 1,780,198	[1],[2],[3],[4],[5]	$ 1,785,299	[6],[7],[8],[9],[10]
Percentage of Net Assets at Fair Value	194.24%	[1],[2],[4],[5]	202.04%	[6],[7],[8],[9]
Contribution percentage in non-qualified assets	9.20%		10.00%
Gross unrealized appreciation	$ 103,800		$ 117,400
Gross unrealized depreciation	119,700		108,200
Net unrealized appreciation (depreciation)	(15,900)		9,200
Cost of investments	$ 1,796,100		$ 1,776,100
Percent of total assets	94.60%		94.80%
Non-control/Non-affiliate investments
Schedule of Investments [Line Items]
Investments at fair value	$ 1,449,483		$ 1,436,316
Percent of investment assets	81.40%		80.50%
Percentage of Net Assets at Fair Value	158.10%		162.60%
Affiliate investments
Schedule of Investments [Line Items]
Investments at fair value	$ 276,771		$ 292,891
Percent of investment assets	15.60%		16.40%
Percentage of Net Assets at Fair Value	30.20%		33.10%
Control investments
Schedule of Investments [Line Items]
Investments at fair value	$ 53,944		$ 56,092
Percent of investment assets	3.00%		3.10%
Percentage of Net Assets at Fair Value	5.90%		6.30%
Minimum
Schedule of Investments [Line Items]
Variable rate adjustment	0.00%		0.00%
Maximum
Schedule of Investments [Line Items]
Variable rate adjustment	0.26161%		26.161%

[1] All debt investments are income-producing, unless otherwise noted. Equity investments are non-income producing, unless otherwise noted. All amounts are stated in U.S. Dollars.

[2] Non-Control/Non-Affiliate investments are generally defined by the 1940 Act as investments that are neither control investments nor affiliate investments. Investments are classified as non-control/non-affiliate investments, unless otherwise noted. At June 30, 2025, the Company held $1,449.5 million of non-control/non-affiliate investments, which represented approximately 81.4% of the Company’s investment assets. The fair value of these investments as a percent of net assets is 158.1%.

[3] The Company's investment portfolio is comprised entirely of debt and equity securities of privately held companies for which quoted prices falling within the categories of Level 1 and Level 2 inputs are not readily available. Therefore, the Company values all of its portfolio investments at fair value, as determined in good faith by the valuation committee comprised of certain officers of the Company (the "Valuation Committee") as the valuation designee of the Board of Directors (the "Valuation Designee") pursuant to Rule 2a-5 under the Investment Company Act of 1940, as amended (the “1940 Act”), using significant unobservable Level 3 inputs. Refer to Note 4 - Fair Value Measurements for further discussion.

[4] 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.

[5] Unless otherwise noted, all portfolio company headquarters are based in the United States.

[6] 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.

[7] Unless otherwise noted, all portfolio company headquarters are based in the United States.

[8] All debt investments are income-producing, unless otherwise noted. Equity investments are non-income producing, unless otherwise noted. All amounts are stated in U.S. Dollars.

[9] Non-Control/Non-Affiliate investments are generally defined by the 1940 Act as investments that are neither control investments nor affiliate investments. Investments are classified as non-control/non-affiliate investments, unless otherwise noted. At March 31, 2025, the Company held $1,436.3 million of non-control/non-affiliate investments, which represented approximately 80.5% of the Company’s investment assets. The fair value of these investments as a percent of net assets is 162.6%.

[10] The Company's investment portfolio is comprised entirely of debt and equity securities of privately held companies for which quoted prices falling within the categories of Level 1 and Level 2 inputs are not readily available. Therefore, the Company values all of its portfolio investments at fair value, as determined in good faith by the valuation committee comprised of certain officers of the Company (the "Valuation Committee") as the valuation designee of the Board of Directors (the "Valuation Designee") pursuant to Rule 2a-5 under the Investment Company Act of 1940, as amended (the “1940 Act”), using significant unobservable Level 3 inputs. Refer to Note 4 - Fair Value Measurements for further discussion.