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Redeemable Capital Shares - Additional Information (Detail)	9 Months Ended
	Jul. 31, 2015
Equity [Abstract]
Redeemable Capital Shares, Settlement of each creation or redemption period	3 days

X

- Definition

Redeemable capital shares settlement period creation and redemption.

+ References

No definition available.

+ Details

Name:	fxc_RedeemableCapitalSharesSettlementPeriodCreationAndRedemption
Namespace Prefix:	fxc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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