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Subsequent Event - Additional Information (Detail)	Sep. 28, 2017
Guggenheim Capital LLC [Member] | Invesco Limited [Member] | Exchange Traded Funds [Member]
Subsequent Event [Line Items]
Issued and outstanding membership interests to be sold	100.00%

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- Definition

Ownership Interest Agreed To Be Sold

+ References

No definition available.

+ Details

Name:	fxe_OwnershipInterestAgreedToBeSold
Namespace Prefix:	fxe_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_OwnershipAxis=fxe_GuggenheimCapitalLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=fxe_InvescoLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_ExchangeTradedFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: