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Credit Losses (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Credit Loss [Abstract] |  |  |
Reinsurance Recoverable, Allowance for Credit Loss, Beginning Balance | $ 3.7 | $ 3.3 | $ 3.8
Reinsurance Recoverable, Allowance for Credit Loss, Period Increase (Decrease) | (0.4) | 0.4 | (0.5)
Reinsurance Recoverable, Allowance for Credit Loss, Ending Balance | 3.3 | 3.7 | 3.3
Accounts Receivable, Allowance for Credit Loss, Beginning Balance | 25.0 | 30.2 | 34.0
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | (5.2) | (3.8)
Accounts Receivable, Allowance for Credit Loss, Ending Balance |  | 25.0 | 30.2
Available-for-sale Investments, Allowance for Credit Loss, Beginning Balance | 7.7 | 2.7 | 0.2
Available-for-sale investment, allowance for credit loss, increase (decrease) | (3.7) | 5.0 | 2.5
Available-for-sale Investments, Allowance for Credit Loss, Current | 4.0 | 7.7 | 2.7
Total, Allowance for Credit Loss, Beginning Balance | $ 36.4 | 36.2 | 38.0
Total allowance for credit losses increase (decrease) |  | 0.2 | (1.8)
Total, Allowance for Credit Loss, Ending Balance |  | $ 36.4 | $ 36.2

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- Definition Total movement of the allowance for credit losses during the year + References No definition available. + Details
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- Definition Amount of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
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- Definition Amount of increase (decrease) in allowance for credit loss on reinsurance recoverable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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