Reinsurance - Schedule of Reinsurance Recoverable (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Reinsurance Disclosures [Abstract]
Ceded future policyholder benefits and expense	$ 335.0	$ 348.6
Ceded unearned premium	1.9	2.0
Ceded claims and benefits payable	100.6	101.8
Ceded paid losses	(0.2)	0.3
Total	$ 437.3	$ 452.7

Reinsurance Recoverable For Paid Claims And Claims Adjustments, Net

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- Definition

Represents the amount of reinsurance recoverable attributable to ceded unearned premiums.

+ References

No definition available.

+ Details

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- Definition

Reinsurance Recoverables for Ceded future policyholder Benefits and Expenses

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Estimated amount after valuation allowance of reinsurance recoverables, due from reinsurers for incurred claims not yet reported, and claims settlement expenses.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479584/944-310-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 310
-Name Accounting Standards Codification
-Section 45
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479616/944-310-45-6

+ Details

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- Definition

Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479838/944-20-50-5

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 310
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479616/944-310-45-5

Reference 3: 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)(6))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

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