XML 32 R21.htm IDEA: XBRL DOCUMENT v3.25.3
Schedule of Investment in Platinum (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2025
USD ($)
oz
Jun. 30, 2025
USD ($)
oz
Schedule of Investments [Abstract]    
Platinum opening balance (in Ounces) | oz 63,137.357 42,625.054
Platinum opening balance | $ $ 85,235 [1] $ 43,136
Platinum contributed (in Ounces) | oz 19,734.898 30,391.246
Platinum contributed | $ $ 28,940 $ 32,318
Platinum distributed (in Ounces) | oz (558.153) (9,878.943)
Platinum distributed | $ $ (594) $ (9,925)
Change in unrealized depreciation (in Ounces) | oz
Change in unrealized depreciation | $ $ 15,734 $ 19,706
Platinum ending balance (in Ounces) | oz 82,314.102 63,137.357
Platinum ending balance | $ [1] $ 129,315 $ 85,235
[1] Cost of investment in platinum: $94,108 and $65,762, respectively.