v3.26.1
Investments, Debt and Equity Securities (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Sep. 30, 2025
Investments, Debt and Equity Securities [Abstract]          
Unrealized Gain (Loss) on Investments     $ 56,078 $ 4,098  
Marketable Securities [Line Items]          
Equity Securities, FV-NI $ 310,582   310,582   $ 104,587
Marketable Securities, Current 310,582   310,582   $ 104,587
Equity Securities, FV-NI, Unrealized Gain (Loss) $ 21,456 $ (3,764) $ 56,078 $ 4,098