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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of accumulated other comprehensive income loss (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning balance $ (39.2)    
Other comprehensive income (loss) before reclassifications 24.2    
Amounts reclassified from accumulated other comprehensive income 4.7    
Net current period other comprehensive income 28.9 $ 58.7 $ (97.3)
Ending balance (10.3) (39.2)  
Unrealized Gains (losses) on marketable securities      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning balance (40.3)    
Other comprehensive income (loss) before reclassifications 27.1    
Amounts reclassified from accumulated other comprehensive income 0.0    
Net current period other comprehensive income 27.1    
Ending balance (13.2) (40.3)  
Unrealized Gains (losses) on cash flow hedges      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning balance 1.1    
Other comprehensive income (loss) before reclassifications (2.9)    
Amounts reclassified from accumulated other comprehensive income 4.7    
Net current period other comprehensive income 1.8    
Ending balance $ 2.9 $ 1.1