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Related Party Disclosures (Hagarty) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Related Party Transaction [Line Items]
Premiums ceded	$ 2,433,351	$ 1,580,492	$ 4,141,713	$ 2,798,726
Hagerty, Inc. [Member]
Related Party Transaction [Line Items]
Gross premium volume	275,642	236,225	473,924	401,196
Premiums ceded	$ 211,052	$ 181,841	$ 363,737	$ 306,469

X

- Definition

Amount of written premiums ceded to other entities.

+ References

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-SubTopic 605
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-Publisher FASB
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X

- Definition

Amount of direct and assumed premiums written.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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