v3.26.1
AVAILABLE-FOR-SALE SECURITIES - NARRATIVE (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Marketable Securities [Line Items]      
Available-for-sale securities, credit losses $ 0.0 $ 0.0 $ 0.0
Allowance for credit losses, available-for-sale securities 0.0 0.0  
Proceeds from sale of available-for-sale securities 0.0 0.0  
Asset Pledged as Collateral      
Marketable Securities [Line Items]      
Available-for-sale securities pledged as collateral $ 750.6 $ 0.6