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Redeemable Capital Shares - Additional Information (Detail) | 12 Months Ended
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Oct. 31, 2014
Equity [Abstract] |
Redeemable Capital Shares, Settlement of each creation or redemption period | 3 days

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