Derivatives - Schedule of Forward Currency Contract, Fair Value (Details) - USD ($)	Sep. 30, 2025	Sep. 30, 2024
Offsetting Derivative Assets [Abstract]
Gross Amount of Recognized Assets	$ 0
Gross Amount of Recognized (Liabilities)	(864,000)
Net amounts presented in the Consolidated Statement of Financial Condition	(864,000)	$ 0
Collateral (Received) Pledged	660,000	$ 0
Net Amounts	(204,000)
SMBC Capital Markets Inc.
Offsetting Derivative Assets [Abstract]
Net amounts presented in the Consolidated Statement of Financial Condition	(864,000)
Collateral (Received) Pledged	660,000
Net Amounts	$ (204,000)

Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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+ Details