Investments in Affiliates - Additional Information (Detail) $ in Millions |
6 Months Ended |
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Jun. 30, 2026
USD ($)
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| Schedule of Investments [Line Items] | |
| Treasury obligation measurement maximum maturity period | 12 months |
| US Treasury and Government [Member] | Affiliated Investments [Member] | |
| Schedule of Investments [Line Items] | |
| Treasury obligation measurement minimum maturity period | 1 month |
| Treasury obligation measurement maximum maturity period | 12 months |
| US Treasury and Government [Member] | Minimum [Member] | Affiliated Investments [Member] | |
| Schedule of Investments [Line Items] | |
| United States Treasury Obligations, Value | $ 300 |
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- Definition Treasury obligation measurement maximum maturity period. No definition available.
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- Definition Treasury obligation measurement minimum maturity period. No definition available.
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- Definition The fair value as of the balance sheet date of firm holdings in debt obligations issued by the US government including short-term Treasury bills, medium-term Treasury notes, and long-term Treasury bonds, as well as debt issued by agencies. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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