CONSOLIDATED STATEMENTS OF ASSETS AND LIABILITIES (Parenthetical) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Investment at cost | $ 4,537,269 | [1],[2] | $ 4,241,699 | [3],[4] | ||||||||
| Foreign currencies at fair value cost | $ 5,630 | $ 8,662 | ||||||||||
| Common shares, par value | $ 0.001 | $ 0.001 | ||||||||||
| Common stock shares, issued | 86,731,536 | 86,731,536 | ||||||||||
| Common stock shares, outstanding | 79,355,653 | 79,355,653 | ||||||||||
| Investment, Unaffiliated Issuer [Member] | ||||||||||||
| Investment at cost | $ 4,487,395 | $ 4,170,055 | ||||||||||
| Short-Term Investments | ||||||||||||
| Investment at cost | $ 49,874 | [1],[2] | $ 71,644 | [3],[4] | ||||||||
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