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v3.25.3

Japanese Yen Deposits - Additional Information (Detail) | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2025 JPY (¥) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 JPY (¥) | Sep. 30, 2025 JPY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 JPY (¥)
Cash and Cash Equivalents [Abstract] |  |  |  |  |  |  |
Principal deposits | $ 546,953,433 | ¥ 79,312,472,968 | $ 208,308,648 | ¥ 33,771,246,366 |  |  |
Principal redemptions | 409,510,530 | 59,887,146,280 | $ 64,467,427 | 16,182,775,633 |  |  |
Withdrawals (to pay expenses) |  | ¥ 274,901,460 |  | ¥ 246,065,012 |  |  |
Deposits, interest bearing | $ 545,494,925 |  |  |  | ¥ 80,561,417,948 | $ 390,754,598 | ¥ 61,410,992,720
Annual nominal rate | 0.00% |  |  |  | 0.00% |  |

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