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Deferred Acquisition Costs (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Deferred Acquisition Costs: |  |  |
Balance, January 1 | $ 12.2 | $ 8.8 |
Add: |  |  |
Premium taxes | 23.1 | 21.2 |
Direct commissions | 8.9 | 12.7 |
Less: |  |  |
Amortization of net deferred acquisition costs | (32.1) | (30.5) | $ (21.8)
Balance, December 31 | 12.1 | 12.2 | 8.8
Other Insurance Expense: |  |  |
Amortization of net deferred acquisition costs | 32.1 | 30.5 | 21.8
Period costs | 61.6 | 46.3 |
Total other insurance expense | $ 93.7 | $ 76.8 | $ 59.2

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