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Significant Accounting Policies - Additional Information (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025
Significant Accounting Policies [Line Items] |  |  |  |  |
Amortization income of purchase discount | $ 663,000 | $ 1,001,000 | $ 754,000 | $ 1,806,000 |
Percentage of non-accrual investment at amortized cost | 5.00% |  | 5.00% |  | 2.80%
Percentage of non-accrual investment at fair value | 2.90% |  | 2.90% |  | 1.90%
Cash | $ 14,430,000 |  | $ 14,430,000 |  | $ 43,211,000
Excise taxes | 844,000 | 906,000 | 1,826,000 | 2,213,000 |
Accrued excise taxes | 2,047,000 |  | 2,047,000 |  |
Transaction services fee | 809,000 | $ 0 | 809,000 | $ 0 |
Foreign Currency [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Cash | $ 5,000 |  | 5,000 |  | 4,896,000
Acquisition cost |  |  | $ 5,000 |  | $ 4,817,000

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- Definition Amount of capitalized acquisition cost incurred during period and excluded from amortization for oil- and gas-producing activities accounted for under full cost method. Excludes exploration and development costs and capitalized interest. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 932 -SubTopic 360 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477385/932-360-S50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 932 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10(c)(7)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479664/932-10-S99-1 + Details
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