Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Accounting Policies [Abstract] | |||
| Investment company, accounting and reporting under Topic 946 | true | ||
| Total asset investment, percentage | 95.10% | ||
| Cash and cash equivalents, held in foreign currency | $ 804,000 | $ 1,178,000 | |
| Cash and cash equivalents, held in foreign currency | 842,000 | 1,168,000 | |
| Other comprehensive income | $ 0 | $ 0 | $ 0 |
| X | ||||||||||
- Definition Percentage of total assets subjected to valuation of investment policy. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash and cash equivalents held in foreign currency. Excludes cash within disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalents include, but are not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of acquisition cost for cash and cash equivalents held in foreign currency. Excludes cash within disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalents include, but are not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Indicates (true false) whether investment company is following accounting and reporting guidance under Topic 946 of Financial Accounting Standards Board (FASB) Accounting Standards Codification. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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