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Distributions (Tables) | 12 Months Ended
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Dec. 31, 2022
Income Tax Disclosure [Abstract] |
Schedule of Reclassifications | During the years ended December 31, 2022, December 31, 2021 and December 31, 2020, the Company's reclassifications of amounts for book purposes arising from permanent book/tax differences primarily related to return of capital distributions were as follows:
| Year Ended December 31,
| 2022 |  | 2021 |  | 2020
Undistributed net investment income | $ | 33,152 |  |  | $ | 10,476 |  |  | $ | 18,182 |
Distributions in excess of net realized gains | (25,449) |  |  | — |  |  | — |
Additional paid-in-capital | (7,703) |  |  | (10,476) |  |  | (18,182) |
Schedule of Tax Character of Distributions | The tax character of distributions paid by the Company for the years ended December 31, 2022, December 31, 2021 and December 31, 2020 were estimated to be as follows:
| Year Ended December 31,
| 2022 |  | 2021 |  | 2020
Ordinary income (non-qualified) | $ | 86,388 |  |  | $ | 105,963 |  |  | $ | 101,547 |
Ordinary income (qualified) | — |  |  | — |  |  | — |
Capital gains | 25,449 |  |  | — |  |  | — |
Return of capital | 10,549 |  |  | 10,490 |  |  | 18,519 |
Total | $ | 122,386 |  |  | $ | 116,453 |  |  | $ | 120,066 |
The following information is hereby provided with respect to distributions declared during the calendar years ended December 31, 2022, December 31, 2021 and December 31, 2020:
| Year Ended December 31,
(unaudited) | 2022 |  | 2021 |  | 2020
Distributions per share | $ | 1.22 |  |  | $ | 1.20 |  |  | $ | 1.24 |
Ordinary dividends | 70.59 | % |  | 90.99 | % |  | 84.58 | %
Long-term capital gains | 20.79 | % |  | — | % |  | — | %
Qualified dividend income | — | % |  | — | % |  | — | %
Dividends received deduction | — | % |  | — | % |  | — | %
Interest-related dividends(1) | 64.49 | % |  | 74.53 | % |  | 79.13 | %
Qualified short-term capital gains(1) | — | % |  | — | % |  | — | %
Return of capital | 8.62 | % |  | 9.01 | % |  | 15.42 | %
(1) Represents the portion of the taxable ordinary dividends eligible for exemption from U.S. withholding tax for nonresident aliens and foreign corporations.
Schedule of Costs of Investments for Tax Purposes | As of December 31, 2022, December 31, 2021 and December 31, 2020, the costs of investments for the Company for tax purposes were $3,209,491, $3,114,145 and $2,950,729, respectively.
| December 31, 2022(1)(2) |  | December 31, 2021(1)(2) |  | December 31, 2020(1)(2)
Tax cost | $ | 3,209,491 |  |  | $ | 3,114,145 |  |  | $ | 2,950,729 |
Gross unrealized appreciation on investments | 438,214 |  |  | 343,520 |  |  | 190,217 |
Gross unrealized depreciation on investments | (409,919) |  |  | (298,616) |  |  | (181,579) |
Total investments at fair value | $ | 3,237,786 |  |  | $ | 3,159,049 |  |  | $ | 2,959,367 |
(1)Includes securities purchased under collateralized agreement to resell. (2)Excludes investments attributable to non-controlling interest in NMNLC.
Schedule of Components of Accumulated Earnings (Deficit) | As of December 31, 2022, December 31, 2021 and December 31, 2020, the Company's components of accumulated earnings (deficit) on a tax basis were as follows:
| Year Ended December 31,
| 2022 |  | 2021 |  | 2020
Accumulated capital gains (capital loss carryforwards) | $ | — |  |  | $ | (25,837) |  |  | $ | (56,486) |
Other temporary differences | 8,538 |  |  | 9,722 |  |  | 10,695 |
Undistributed ordinary income | — |  |  | — |  |  | — |
Unrealized (appreciation) depreciation | (1,019) |  |  | 63,585 |  |  | (2,973) |
Total | $ | 7,519 |  |  | $ | 47,470 |  |  | $ | (48,764) |

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