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Combined Statements of Financial Condition (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2024	Sep. 30, 2024
Investments in Gold, at cost	$ 6,986,462	$ 6,671,768
SPDR Gold Mini Shares Trust [Member]
Investments in Gold, at cost	$ 6,986,462	$ 6,671,768
Par value	$ 0	$ 0
Investment in Gold [Member]
Investments in Gold, at cost	$ 6,986,462	$ 6,671,768
Investment in Gold [Member] | SPDR Gold Mini Shares Trust [Member]
Investments in Gold, at cost	$ 6,986,462	$ 6,671,768

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