XML 40 R24.htm IDEA: XBRL DOCUMENT v3.10.0.1

Redeemable Capital Shares - Additional Information (Detail)	2 Months Ended
	Dec. 31, 2018
Temporary Equity Disclosure [Abstract]
Redeemable capital shares, settlement of each creation or redemption period	2 days

X

- Definition

Redeemable capital shares settlement period creation and redemption.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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