v3.25.4
FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Mar. 31, 2025
Debt Instrument [Line Items]      
Investment income, interest $ 5,500 $ 8,300  
Restricted investments 599,830 599,830 $ 0
Senior Notes      
Debt Instrument [Line Items]      
Long-term debt, fair value 998,500 998,500 $ 583,900
Reported Value Measurement      
Debt Instrument [Line Items]      
Restricted investments, at fair value $ 10,900 $ 10,900