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Share Purchase and Redemptions - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2022
Temporary Equity Disclosure [Abstract]
Share Purchases and Redemptions, Settlement of each creation or redemption period	2 days

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- Definition

Share purchase and redemptions settlement period creation and redemption.

+ References

No definition available.

+ Details

Name:	fxy_SharePurchaseAndRedemptionsSettlementPeriodCreationAndRedemption
Namespace Prefix:	fxy_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_TemporaryEquityDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration