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Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Beginning balance $ 0.0 $ 0.0
Gross (decrease) increase in unrecognized tax positions 0.0  
Gross (decrease) increase in unrecognized tax positions   0.0
Ending balance $ 0.0 $ 0.0