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Euro Deposits - Additional Information (Detail)
6 Months Ended 12 Months Ended
Jun. 30, 2024
USD ($)
Jun. 30, 2024
EUR (€)
Jun. 30, 2023
USD ($)
Dec. 31, 2023
EUR (€)
Jun. 30, 2024
EUR (€)
Dec. 31, 2023
USD ($)
Dec. 31, 2023
EUR (€)
Cash and Cash Equivalents [Abstract]              
Annual nominal rate 2.50%       2.50%    
Principal deposits $ 55,027,871 € 46,132,058 $ 75,017,103 € 143,007,863      
Principal redemptions 89,695,306 € 83,037,143 $ 115,014,404 € 212,205,189      
Deposits, interest bearing $ 173,046,893       € 161,461,403 $ 219,125,708 € 198,364,675