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Schedule V - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2025
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule V - Valuation and Qualifying Accounts | VALUATION AND QUALIFYING ACCOUNTS
|  |  |  | Additions |  |  |  |
($ in millions) |  | Balance at beginning of period |  | Charged to costs and expenses |  | Charge to other accounts |  | (Deductions) |  | Balance at end of period
Year Ended December 31, 2025 |  |  |  |  |  |  |  |  |  |
Valuation allowance for deferred tax assets |  | $ | 364.0 |  |  | $ | 31.8 |  |  | $ | — |  |  | $ | — |  |  | $ | 395.8 |
Allowance for premium receivables |  | $ | 2.8 |  |  | $ | 1.3 |  |  | $ | — |  |  | $ | — |  |  | $ | 4.1 |
Year Ended December 31, 2024 |  |  |  |  |  |  |  |  |  |
Valuation allowance for deferred tax assets |  | $ | 322.4 |  |  | $ | 41.6 |  |  | $ | — |  |  | $ | — |  |  | $ | 364.0 |
Allowance for premium receivables |  | $ | 2.5 |  |  | $ | 0.3 |  |  | $ | — |  |  | $ | — |  |  | $ | 2.8 |

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-5 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
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- References No definition available. + Details
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