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Statements of Changes in Net Assets (Unaudited) (Parenthetical) - shares
3 Months Ended 9 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2024
Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]        
Creation of shares 0 1,100,000 800,000 2,700,000
Redemption of shares 1,250,000 1,100,000 4,400,000 8,600,000