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Document and Entity Information - Jul. 31, 2015 - shares
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Document And Entity Information [Abstract]  
Document Type 10-Q
Amendment Flag false
Document Period End Date Jul. 31, 2015
Document Fiscal Year Focus 2015
Document Fiscal Period Focus Q3
Trading Symbol FXC
Entity Registrant Name CURRENCYSHARES CANADIAN DOLLAR TRUST
Entity Central Index Key 0001353612
Current Fiscal Year End Date --10-31
Entity Filer Category Accelerated Filer
Entity Common Stock, Shares Outstanding 0