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Organization - Additional Information (Detail)
 6 Months Ended
Jun. 30, 2019
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