4. BITCOIN - Schedule of Activities of the Bitcoin (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Common Domain Members [Abstract] | ||||||||||
| Beginning Balance - before cumulative effect change | $ 813,221 | $ 979,635 | $ 1,189,443 | $ 431,661 | ||||||
| Addition of bitcoin from mining activities | [1] | 138,006 | 198,644 | 455,594 | 542,662 | |||||
| Bitcoin purchased | [2] | 0 | 82,152 | 46,374 | 82,152 | |||||
| Bitcoin sold | (48,086) | (127,829) | (105,676) | (127,829) | ||||||
| Bitcoin issued for services and other non-cash consideration | (535) | (81,360) | (48,907) | (88,263) | ||||||
| Bitcoin transferred to collateral account | (87,614) | (282,418) | (698,947) | (291,278) | ||||||
| Bitcoin received from collateral account | 15,550 | 42,279 | 463,601 | 171,459 | ||||||
| (Loss) gain on fair value of bitcoin, net | (116,249) | 268,651 | (587,189) | 359,190 | ||||||
| Ending Balance | [3] | $ 714,293 | $ 1,079,754 | $ 714,293 | $ 1,079,754 | |||||
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