XML 75 R59.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Reinsurance - Essent Guaranty's Excess of Loss Reinsurance Coverages and Retentions (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($)
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Reinsurance in Force | $ 1,164,043
Radnor Re, Total |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Insurance in Force | 136,680,377
Remaining Risk in Force | 36,669,308
Remaining Reinsurance in Force | 1,164,043
Remaining First Layer Retention | $ 1,355,706
Radnor Re 2019-1 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Retired percent | 100.00%
Radnor Re 2020-1 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Retired percent | 99.00%
OXL |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Insurance in Force | $ 82,868,070
Remaining Risk in Force | 22,297,808
Remaining Reinsurance in Force | 254,539
Remaining First Layer Retention | 965,220
Reinsurance Policy, Type [Axis]: Vintage August 2022- June 2023 | Radnor Re 2023-1 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Insurance in Force | 30,639,242
Remaining Risk in Force | 8,380,934
Remaining Reinsurance in Force | 281,462
Remaining First Layer Retention | 281,463
Reinsurance Policy, Type [Axis]: Vintage Year Aug 2020 - Mar 2021 | Radnor Re 2021-1 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Insurance in Force | 31,673,378
Remaining Risk in Force | 8,233,067
Remaining Reinsurance in Force | 309,199
Remaining First Layer Retention | 278,638
Reinsurance Policy, Type [Axis]: Vintage Year Oct 2021 - Jul 2022 | Radnor Re 2022-1 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Insurance in Force | 31,520,927
Remaining Risk in Force | 8,522,229
Remaining Reinsurance in Force | 231,142
Remaining First Layer Retention | 303,324
Reinsurance Policy, Type [Axis]: Vintage Year Apr 2021 - Sep 2021 | Radnor Re 2021-2 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Insurance in Force | 35,958,961
Remaining Risk in Force | 9,735,395
Remaining Reinsurance in Force | 339,890
Remaining First Layer Retention | 279,051
Reinsurance Policy, Type [Axis]: Vintage Year Jan 2018 - Dec 2018 | XOL 2019-1 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Insurance in Force | 5,503,086
Remaining Risk in Force | 1,441,695
Remaining Reinsurance in Force | 76,144
Remaining First Layer Retention | 245,894
Reinsurance Policy, Type [Axis]: Vintage Year Jan 2019 - Aug 2019 | Radnor Re 2020-1 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Insurance in Force | 6,887,869
Remaining Risk in Force | 1,797,683
Remaining Reinsurance in Force | 2,350
Remaining First Layer Retention | 213,230
Reinsurance Policy, Type [Axis]: Vintage Year Jan 2019 - Dec 2019 | Radnor Re 2020-1 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Reinsurance in Force | 2,350
Reinsurance Policy, Type [Axis]: Vintage Year Jan 2019 - Dec 2019 | XOL 2020-1 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Insurance in Force | 6,887,869
Remaining Risk in Force | 1,797,683
Remaining Reinsurance in Force | 36,403
Remaining First Layer Retention | 213,143
Reinsurance Policy, Type [Axis]: Vintage Year Oct 2021 - Dec 2022 | XOL 2022-1 |
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] |
Remaining Insurance in Force | 70,477,115
Remaining Risk in Force | 19,058,430
Remaining Reinsurance in Force | 141,992
Remaining First Layer Retention | $ 506,183

X
- Definition Reinsurance, Remaining Insurance In Force + References No definition available. + Details
Name: | esnt_ReinsuranceRemainingInsuranceInForce
Namespace Prefix: | esnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reinsurance, Remaining Reinsurance In Force + References No definition available. + Details
Name: | esnt_ReinsuranceRemainingReinsuranceInForce
Namespace Prefix: | esnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reinsurance, Remaining Reinsurance In Force, Retired In Period, Percent + References No definition available. + Details
Name: | esnt_ReinsuranceRemainingReinsuranceInForceRetiredInPeriodPercent
Namespace Prefix: | esnt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reinsurance, Remaining Risk In Force + References No definition available. + Details
Name: | esnt_ReinsuranceRemainingRiskInForce
Namespace Prefix: | esnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 17 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17(Column A)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480149/944-235-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17(Column B)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480149/944-235-S99-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17(Column C)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480149/944-235-S99-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17(Column D)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480149/944-235-S99-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17(Column E)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480149/944-235-S99-2 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17(Column F)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480149/944-235-S99-2 + Details
Name: | srt_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentLineItems
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount per life of risk undertaken originally by insurer that is not ceded to reinsurer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479838/944-20-50-3 + Details
Name: | us-gaap_ReinsuranceRetentionAmountRetainedPerLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_RadnorReTotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_RadnorRe20191Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_RadnorRe20201Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_OXLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReinsuranceContractAxis=Vintage August 2022- June 2023
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_RadnorRe20231Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReinsuranceContractAxis=Vintage Year Aug 2020 - Mar 2021
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_RadnorRe20211Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReinsuranceContractAxis=Vintage Year Oct 2021 - Jul 2022
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_RadnorRe20221LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReinsuranceContractAxis=Vintage Year Apr 2021 - Sep 2021
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_RadnorRe20212LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReinsuranceContractAxis=Vintage Year Jan 2018 - Dec 2018
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_XOL20191Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReinsuranceContractAxis=Vintage Year Jan 2019 - Aug 2019
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReinsuranceContractAxis=Vintage Year Jan 2019 - Dec 2019
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_XOL20201Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReinsuranceContractAxis=Vintage Year Oct 2021 - Dec 2022
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_XOL20221Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |