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Organization and Description of the Trust - Additional Information (Detail) - Jul. 31, 2015
EUR (€)
Deposit
shares
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Organization formation date Dec. 05, 2005
Amounts deposited in Trust's primary deposit account | € € 100
Number of deposits accounts in which trust's assets primarily consist of Euros | Deposit 2
Number of shares, on which interest received and paid, transferred to secondary deposit 50,000