v3.25.4
Policyholder Obligations - Supplemental Financial Information (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]    
Liability under Funding Agreements $ 608.0 $ 637.7
United Insurance | FHLB of Chicago    
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]    
Liability under Funding Agreements 513.8 541.3
Fair Value of Collateral Pledged 661.3 619.3
FHLB of Chicago Common Stock Owned at Cost $ 17.7 $ 16.9