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Credit Losses (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Credit Loss [Abstract] |  |  |
Available-for-sale Investments, Allowance for Credit Loss, Beginning Balance | $ 7.7 | $ 2.7 |
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Not Previously Recorded | 0.3 | 5.4 |
Available-for-sale investment, allowance for credit loss, increase (decrease) | (3.6) | 0.2 |
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Securities Sold | (1.5) | (0.6) |
Available-for-sale Investments, Allowance for Credit Loss, Current | 2.9 | 7.7 | $ 2.7
Reinsurance Recoverable, Allowance for Credit Loss, Beginning Balance | 3.7 | 3.3 |
Reinsurance Recoverable, Allowance for Credit Loss, Period Increase (Decrease) | 0.0 | 0.4 | 0.5
Reinsurance Recoverable, Allowance for Credit Loss, Ending Balance | 3.7 | 3.7 | 3.3
Accounts Receivable, Allowance for Credit Loss, Beginning Balance | 25.0 | 30.2 |
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) | (4.0) | (5.2) |
Accounts Receivable, Allowance for Credit Loss, Ending Balance | $ 21.0 | $ 25.0 | $ 30.2

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- Definition Amount of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(5)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-4 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
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