v3.25.3
FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Mar. 31, 2025
Debt Instrument [Line Items]    
Restricted investments $ 604,065 $ 0
Reported Value Measurement    
Debt Instrument [Line Items]    
Restricted investments, at fair value 10,500  
Senior Notes    
Debt Instrument [Line Items]    
Long-term debt, fair value $ 994,700 $ 583,900