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Redeemable Capital Shares - Schedule for Redeemable Capital Shares Activity (Detail) (USD $) | 12 Months Ended
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Oct. 31, 2014 | Oct. 31, 2013 | Oct. 31, 2012
Equity [Abstract] |  |  |
Opening balance, Shares | 3,550,000 us-gaap_CommonStockSharesOutstanding | 4,950,000 us-gaap_CommonStockSharesOutstanding | 6,350,000 us-gaap_CommonStockSharesOutstanding
Shares issued, Shares | 400,000 us-gaap_StockIssuedDuringPeriodSharesIssuedForCash | 600,000 us-gaap_StockIssuedDuringPeriodSharesIssuedForCash | 150,000 us-gaap_StockIssuedDuringPeriodSharesIssuedForCash
Shares redeemed, Shares | (1,100,000)us-gaap_StockRedeemedOrCalledDuringPeriodShares | (2,000,000)us-gaap_StockRedeemedOrCalledDuringPeriodShares | (1,550,000)us-gaap_StockRedeemedOrCalledDuringPeriodShares
Adjustment to period shares due to currency movement and other, Shares | 0 fxc_AdjustmentToPeriodSharesCurrencyMovementAndOtherAggregateShares | 0 fxc_AdjustmentToPeriodSharesCurrencyMovementAndOtherAggregateShares | 0 fxc_AdjustmentToPeriodSharesCurrencyMovementAndOtherAggregateShares
Ending balance, Shares | 2,850,000 us-gaap_CommonStockSharesOutstanding | 3,550,000 us-gaap_CommonStockSharesOutstanding | 4,950,000 us-gaap_CommonStockSharesOutstanding
Opening balance, Amount | $ 338,556,957 us-gaap_CommonStockValue | $ 492,510,069 us-gaap_CommonStockValue | $ 635,831,194 us-gaap_CommonStockValue
Shares issued, Amount | 36,495,266 us-gaap_StockIssuedDuringPeriodValueIssuedForCash | 58,495,917 us-gaap_StockIssuedDuringPeriodValueIssuedForCash | 14,846,422 us-gaap_StockIssuedDuringPeriodValueIssuedForCash
Shares redeemed, Amount | (100,362,128)us-gaap_StockRedeemedOrCalledDuringPeriodValue | (194,992,928)us-gaap_StockRedeemedOrCalledDuringPeriodValue | (153,417,420)us-gaap_StockRedeemedOrCalledDuringPeriodValue
Adjustment to period shares due to currency movement and other, Amount | (23,275,125)fxc_AdjustmentToPeriodSharesCurrencyMovementAndOtherAggregateValue | (17,456,101)fxc_AdjustmentToPeriodSharesCurrencyMovementAndOtherAggregateValue | (4,750,127)fxc_AdjustmentToPeriodSharesCurrencyMovementAndOtherAggregateValue
Ending balance, Amount | $ 251,414,970 us-gaap_CommonStockValue | $ 338,556,957 us-gaap_CommonStockValue | $ 492,510,069 us-gaap_CommonStockValue

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- Definition Adjustment to period shares currency movement and other aggregate shares. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Adjustment to period shares currency movement and other aggregate value. + References No definition available. + Details
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Details
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- Definition Number of shares issued as consideration for cash for development stage entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 915 -SubTopic 215 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6472370&loc=d3e38297-110927 + Details
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- Definition Value of shares issued as consideration for cash for development stage entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 915 -SubTopic 215 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6472370&loc=d3e38297-110927 + Details
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- Definition Number of stock bought back by the entity at the exercise price or redemption price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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- Definition Equity impact of the value of stock bought back by the entity at the exercise price or redemption price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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