v3.26.1
INVESTMENT BORROWINGS - NARRATIVE (Details)
$ in Millions
6 Months Ended
Jun. 30, 2026
USD ($)
subsidiary
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Debt Instrument [Line Items]      
Number of insurance subsidiaries that are members of the FHLB | subsidiary 3    
Investment borrowings $ 2,941.7   $ 2,441.7
Federal home loan bank stock 128.5    
Interest expense on FHLB borrowings 56.3 $ 53.7  
Federal Home Loan Bank Advances      
Debt Instrument [Line Items]      
Investment borrowings 2,941.7    
Federal home loan bank advances, collateral pledged $ 3,600.0