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Contingencies - Narrative (Details) - USD ($) $ in Thousands				12 Months Ended
	May 15, 2023	Apr. 24, 2023	Nov. 21, 2022	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Additional total refund requested to be provided to private automobile policyholders			$ 52,000
Reductions in premiums written, net				$ 128,000
Aggregate credit amount	$ 250	$ 25,000

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of decrease (increase) in unearned premiums.

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Amount of damages awarded to the plaintiff in the legal matter.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147483076/450-20-50-1

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
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-URI https://asc.fasb.org//1943274/2147483076/450-20-50-4

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