Cash funding used to purchase Markel CATCo Funds' interests in Markel CATCo Re

No definition available.

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- Definition

This amount is the Company's preference shares investment in Markel CATCo Re.

+ References

No definition available.

+ Details

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- Definition

Percentage of Markel CATCo Re net equity held by the Company

+ References

No definition available.

+ Details

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- Definition

Redemption of Markel CATCo Re noncontrolling interests

+ References

No definition available.

+ Details

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- Definition

Capital returned from Markel CATCo Re, related to original $45.1 million investment

+ References

No definition available.

+ Details

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- Definition

Tail risk cover provided by Markel to Markel CATCO Re in exchange for the Markel CATCo Funds' interests in Markel CATCo Re in proposed transaction

+ References

No definition available.

+ Details

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- Definition

Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480081/944-40-50-3

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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 810
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 810
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 30
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481420/860-30-50-1A

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- Details

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Variable Interest Entities (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jun. 30, 2022	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Mar. 31, 2022
Variable Interest Entity [Line Items]
Cash funding used to purchase Markel CATCo Funds' interests in Markel CATCo Re					$ 45,100
Returned capital from Markel CATCo Re	$ 24,900
Investment in Markel CATCo Re		$ 20,100		$ 20,100
Percentage of Markel CATCo Re net equity held by the Company		18.00%		23.00%
Tail risk cover in Markel CATCo transaction		$ 95,000
Favorable development on prior years' loss reserves		77,023	$ 71,317
Redemption of Markel CATCo Re noncontrolling interests		0	(88,997)
Noncontrolling Interests [Member]
Variable Interest Entity [Line Items]
Redemption of Markel CATCo Re noncontrolling interests			(62,646)
Markel CATCo Re
Variable Interest Entity [Line Items]
Favorable development on prior years' loss reserves		$ (15,700)	$ (44,800)