XML 77 R66.htm IDEA: XBRL DOCUMENT
v3.21.2

Collateralized Reinsurance And Trust Agreements (Schedule of Proceeds from Issuance of Notes Held in Reinsurance Trusts) (Details) - Kilimanjaro Re Limited [Member] $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2021 USD ($)
Series 2017-1 Class A-2 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 13, 2017
Maturity Date | Apr. 13, 2022
Amount | $ 50,000
Series 2017-1 Class B-2 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 13, 2017
Maturity Date | Apr. 13, 2022
Amount | $ 75,000
Series 2017-1 Class C-2 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 13, 2017
Maturity Date | Apr. 13, 2022
Amount | $ 175,000
Series 2018-1 Class A-1 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 30, 2018
Maturity Date | May 06, 2022
Amount | $ 62,500
Series 2018-1 Class B-1 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 30, 2018
Maturity Date | May 06, 2022
Amount | $ 200,000
Series 2018-1 Class A-2 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 30, 2018
Maturity Date | May 05, 2023
Amount | $ 62,500
Series 2018-1 Class B-2 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 30, 2018
Maturity Date | May 05, 2023
Amount | $ 200,000
Series 2019-1 Class A-1 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Dec. 12, 2019
Maturity Date | Dec. 19, 2023
Amount | $ 150,000
Series 2019-1 Class B-1 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Dec. 12, 2019
Maturity Date | Dec. 19, 2023
Amount | $ 275,000
Series 2019-1 Class A-2 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Dec. 12, 2019
Maturity Date | Dec. 19, 2024
Amount | $ 150,000
Series 2019-1 Class B-2 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Dec. 12, 2019
Maturity Date | Dec. 19, 2024
Amount | $ 275,000
Series 2020-1 Class A-1 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 08, 2021
Maturity Date | Apr. 21, 2025
Amount | $ 150,000
Series 2020-1 Class B-1 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 08, 2021
Maturity Date | Apr. 21, 2025
Amount | $ 85,000
Series 2020-1 Class C-1 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 08, 2021
Maturity Date | Apr. 21, 2025
Amount | $ 85,000
Series 2020-1 Class A-2 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 08, 2021
Maturity Date | Apr. 20, 2026
Amount | $ 150,000
Series 2020-1 Class B-2 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 08, 2021
Maturity Date | Apr. 20, 2026
Amount | $ 90,000
Series 2020-1 Class C-2 [Member] |
Effects of Reinsurance [Line Items] |
Issue Date | Apr. 08, 2021
Maturity Date | Apr. 20, 2026
Amount | $ 90,000

X
- References No definition available. + Details
Name: | re_CatastropheReinsuranceBondsFundedAmount
Namespace Prefix: | re_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | re_CatastropheReinsuranceBondsIssuanceDate
Namespace Prefix: | re_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | re_CatastropheReinsuranceBondsMaturityDate
Namespace Prefix: | re_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- 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 No definition available. + Details
Name: | us-gaap_EffectsOfReinsuranceLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=re_KilimanjaroReLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20171ClassA2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20171ClassB2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20171ClassC2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20181ClassA1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20181ClassB1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20181ClassA2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20181ClassB2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20191ClassA1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20191ClassB1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20191ClassA2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20191ClassB2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20201ClassA1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20201ClassB1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20201ClassC1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20201ClassA2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20201ClassB2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=re_Series20201ClassC2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |