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v3.23.3

Deferred Costs, Capitalized, Prepaid, and Other Assets (Details) - USD ($) $ in Millions | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Deferred Policy Acquisition Costs | $ 622.2 | $ 683.8 | $ 635.6 | $ 688.0
Deferred Policy Acquisition Cost, Capitalization | 449.3 | 530.0 |  |
Deferred Policy Acquisition Costs, Amortization Expense | (453.8) | (528.7) |  |
Deferred Policy Acquisition Cost, Experience Adjustment | $ (8.9) | (5.5) |  |
Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Disposal Group, Including Discontinued Operation, Deferred Policy Acquisition Cost |  | 38.7 |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Reserve National Insurance Company |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Disposal Group, Including Discontinued Operation, Deferred Policy Acquisition Cost |  | 38.7 |  |
Effect of Retrospective Application of Accounting Standards Update 2018-12 |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Liability for Future Policy Benefit, Weighted-Average Duration | 13 years 9 months 18 days |  | 15 years 6 months |
Term Life Insurance |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Deferred Policy Acquisition Cost, Capitalization | $ 42.2 | 47.0 |  |
Deferred Policy Acquisition Costs, Amortization Expense | (14.7) | (21.5) |  |
Deferred Policy Acquisition Cost, Experience Adjustment | (8.9) | (5.5) |  |
Property and Casualty Insurance Reserves |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Deferred Policy Acquisition Costs | 199.1 | 244.5 | $ 231.1 | 268.7
Deferred Policy Acquisition Cost, Capitalization | 407.1 | 483.0 |  |
Deferred Policy Acquisition Costs, Amortization Expense | (439.1) | (507.2) |  |
Deferred Policy Acquisition Cost, Experience Adjustment | 0.0 | 0.0 |  |
Life Insurance |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Deferred Policy Acquisition Costs | $ 423.1 | $ 439.3 | $ 404.5 | $ 419.3

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