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CONSOLIDATED STATEMENTS OF ASSETS AND LIABILITIES (Parenthetical) - USD ($) $ in Thousands | Sep. 30, 2023 | Mar. 31, 2023
--- | --- | ---
Cost | $ 834,798 |  | $ 720,630 | [1]
Line of credit, cost | $ 79,300 |  | $ 35,200 |
Common stock, par value (in USD per share) | $ 0.001 |  | $ 0.001 |
Common stock, authorized (in shares) | 100,000,000 |  | 100,000,000 |
Common stock, issued (in shares) | 33,895,675 |  | 33,591,505 |
Common stock, outstanding (in shares) | 33,895,675 |  | 33,591,505 |
Non-Control/Non-Affiliate Investments |  |  |  |
Cost | $ 511,593 | [2] | $ 429,305 | [3]
Affiliate Investments |  |  |  |
Cost | 308,555 | [4] | 276,055 | [5]
Control Investments |  |  |  |
Cost | $ 14,650 | [6] | $ 15,270 | [7]
[1] | Cumulative gross unrealized appreciation for federal income tax purposes is $150.4 million; cumulative gross unrealized depreciation for federal income tax purposes is $119.3 million. Cumulative net unrealized appreciation is $31.1 million, based on a tax cost of $722.4 million.
[2] | Non-Control/Non-Affiliate investments, as defined by the 1940 Act, are those that are neither Control nor Affiliate investments and in which we own less than 5.0% of the issued and outstanding voting securities.
[3] | Non-Control/Non-Affiliate investments, as defined by the 1940 Act, are those that are neither Control nor Affiliate investments and in which we own less than 5.0% of the issued and outstanding voting securities.
[4] | Affiliate investments, as defined by the 1940 Act, are those that are not Control investments and in which we own, with the power to vote, between and inclusive of 5.0% and 25.0% of the issued and outstanding voting securities.
[5] | Affiliate investments, as defined by the 1940 Act, are those that are not Control investments and in which we own, with the power to vote, between and inclusive of 5.0% and 25.0% of the issued and outstanding voting securities.
[6] | Control investments, as defined by the 1940 Act, are those where we have the power to exercise a controlling influence over the management or policies of the portfolio company, which may include owning, with the power to vote, more than 25.0% of the issued and outstanding voting securities.
[7] | Control investments, as defined by the 1940 Act, are those where we have the power to exercise a controlling influence over the management or policies of the portfolio company, which may include owning, with the power to vote, more than 25.0% of the issued and outstanding voting securities.

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