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Dividend Restrictions And Statutory Financial Information (Regulatory Targeted Capital And The Actual Statutory Capital) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems
Minimum percent of total adjusted capital	200.00%
Bermuda Re [Member]
ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems
Regulatory targeted capital		$ 2,061,065
Actual capital	2,944,455	3,197,418
Everest Re [Member]
ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems
Regulatory targeted capital	2,489,772	2,001,226
Actual capital	$ 5,276,003	$ 3,739,140

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- Definition

Minimum Percent Of Total Adjusted Capital

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Amount of total capital as defined by regulatory framework.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
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Amount of minimum total risk-based capital required for capital adequacy as defined by regulatory framework.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
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