XML 76 R60.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Reinsurance - Summary of Total Assets and Maximum Exposure Loss (Details) $ in Thousands | Dec. 31, 2023 USD ($)
--- | ---
Variable Interest Entity [Line Items] |
Total VIE Assets | $ 1,164,043
Radnor Re 2020-1 | Reinsurance Policy, Type [Axis]: Vintage Year Jan 2019 - Aug 2019 |
Variable Interest Entity [Line Items] |
Total VIE Assets | 2,350
Radnor Re 2020-1 | Reinsurance Policy, Type [Axis]: Vintage Year Jan 2019 - Dec 2019 |
Variable Interest Entity [Line Items] |
Total VIE Assets | 2,350
Radnor Re 2021-1 | Reinsurance Policy, Type [Axis]: Vintage Year Aug 2020 - Mar 2021 |
Variable Interest Entity [Line Items] |
Total VIE Assets | 309,199
Radnor Re 2021-2 | Reinsurance Policy, Type [Axis]: Vintage Year Apr 2021 - Sep 2021 |
Variable Interest Entity [Line Items] |
Total VIE Assets | 339,890
Radnor Re 2022-1 | Reinsurance Policy, Type [Axis]: Vintage Year Oct 2021 - Jul 2022 |
Variable Interest Entity [Line Items] |
Total VIE Assets | 231,142
Radnor Re 2023-1 | Reinsurance Policy, Type [Axis]: Vintage August 2022- June 2023 |
Variable Interest Entity [Line Items] |
Total VIE Assets | 281,462
VIE |
Variable Interest Entity [Line Items] |
Maximum Exposure to Loss, On - Balance Sheet | (9,076)
Maximum Exposure to Loss, Off - Balance Sheet | 298
Maximum Exposure to Loss, Total | (8,778)
Radnor Re 2020-1 Ltd. | VIE |
Variable Interest Entity [Line Items] |
Maximum Exposure to Loss, On - Balance Sheet | 13
Maximum Exposure to Loss, Off - Balance Sheet | 1
Maximum Exposure to Loss, Total | 14
Radnor Re 2021-1 Ltd. | VIE |
Variable Interest Entity [Line Items] |
Maximum Exposure to Loss, On - Balance Sheet | (4,955)
Maximum Exposure to Loss, Off - Balance Sheet | 53
Maximum Exposure to Loss, Total | (4,902)
Radnor Re 2021-2 | VIE |
Variable Interest Entity [Line Items] |
Maximum Exposure to Loss, On - Balance Sheet | (5,212)
Maximum Exposure to Loss, Off - Balance Sheet | 84
Maximum Exposure to Loss, Total | (5,128)
Radnor Re 2022-1 | VIE |
Variable Interest Entity [Line Items] |
Maximum Exposure to Loss, On - Balance Sheet | 600
Maximum Exposure to Loss, Off - Balance Sheet | 67
Maximum Exposure to Loss, Total | 667
Radnor Re 2023-1 Ltd. | VIE |
Variable Interest Entity [Line Items] |
Maximum Exposure to Loss, On - Balance Sheet | 478
Maximum Exposure to Loss, Off - Balance Sheet | 93
Maximum Exposure to Loss, Total | $ 571

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 Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Off The Balance Sheet + References No definition available. + Details
Name: | esnt_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureAmountOffTheBalanceSheet
Namespace Prefix: | esnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount On The Balance Sheet + References No definition available. + Details
Name: | esnt_VariableInterestEntityReportingEntityInvolvementMaximumLossExposureAmountOnTheBalanceSheet
Namespace Prefix: | esnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Variable Interest Entity, Reporting Entity Involvement, Maximum Loss (Gain) Exposure, Amount + References No definition available. + Details
Name: | esnt_VariableInterestEntityReportingEntityInvolvementMaximumLossGainExposureAmount
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 -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481203/810-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481231/810-10-45-25 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (bb) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481203/810-10-50-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481231/810-10-45-25 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481420/860-30-50-1A Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (b)(1)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481420/860-30-50-1A Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481420/860-30-50-1A + Details
Name: | us-gaap_VariableInterestEntityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=esnt_RadnorRe20201Member
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_RadnorRe20211Member
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_RadnorRe20212LtdMember
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_RadnorRe20221LtdMember
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_RadnorRe20231Member
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_ConsolidatedEntitiesAxis=us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=esnt_RadnorRe20201LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=esnt_RadnorRe20211LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | dei_LegalEntityAxis=esnt_RadnorRe20231LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |