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Significant Accounting Policies - Additional Information (Detail)	9 Months Ended
	Jul. 31, 2017 USD ($)
Accounting Policies [Abstract]
Provision for federal income taxes	$ 0
Minimum days required to stay for tax liability	183 days

X

- Definition

Minimum period require to stay for tax liability.

+ References

No definition available.

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Namespace Prefix:	fxe_
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Balance Type:	na
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- References

No definition available.

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X

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a),(b)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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