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Australian Dollar Deposits - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2023 AUD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 AUD ($)	Dec. 31, 2023 AUD ($)	Dec. 31, 2022 AUD ($)
Cash and Cash Equivalents [Abstract]
Annual nominal rate	1.92%				1.92%
Principal deposits	$ 19,742,611	$ 29,694,198	$ 24,428,829	$ 34,667,570
Principal redemptions	30,120,478	$ 34,643,231	26,984,531	49,506,491
Cash paid for Sponsor's fee				$ 407,222
Deposits, interest bearing	$ 77,670,560		$ 80,548,483		$ 113,827,761	$ 118,776,794

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