Policyholder Contract Liabilities - Policyholder Contract Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Investment Holdings [Line Items]
Policyholder Obligations	$ 637.7	$ 655.7
Universal Life-type Policyholder Account Balances
Investment Holdings [Line Items]
Policyholder Obligations	96.4	98.3
United Insurance \| FHLB of Chicago
Investment Holdings [Line Items]
Policyholder Obligations	$ 541.3	$ 557.4

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details