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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fixed Indexed Annuity Insurance Liability (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Policyholder Account Balance [Line Items]
Total fixed indexed annuity insurance liabilities	$ 10,465.8	$ 9,678.6
Fixed Indexed Annuity
Policyholder Account Balance [Line Items]
Host contract liability	8,972.6	8,301.9
Embedded derivatives at fair value	$ 1,493.2	$ 1,376.7

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- Definition

Fixed Indexed Annuity Insurance Liabilities

+ References

No definition available.

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- Definition

Host Contract Liability

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- Definition

Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

+ References

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- Definition

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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