v3.25.2
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)
shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
segment
shares
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of reportable segment | segment     1    
Deferred policy acquisition cost $ 38.7   $ 38.7   $ 29.3
Deferred policy acquisition costs, amortization expense $ 18.3 $ 9.1 $ 29.7 $ 15.7  
Performance-based Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares) | shares 0.2   0.2    
Performance-based Restricted Stock Units | Tranche 1          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period 1 year        
Performance-based Restricted Stock Units | Tranche 2          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period 2 years        
Performance-based Restricted Stock Units | Tranche 3          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period 3 years        
Performance-based Restricted Stock Units | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation arrangement by share-based payment award, equity Instruments other than options, percentage 0.00%        
Performance-based Restricted Stock Units | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation arrangement by share-based payment award, equity Instruments other than options, percentage 200.00%