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Organization and Description of the Trust - Additional Information (Detail)
 6 Months Ended
Apr. 30, 2016
JPY (¥)
Depositor
shares
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Date of Incorporation Feb. 01, 2007
Initial deposits by sponsor, primary deposit account | ¥ ¥ 10,000
Number of deposits accounts in which trust's assets primarily consist of Japanese Yen | Depositor 2
Redemptions capital shares, number of shares in each block | shares 50,000