XML 88 R72.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Stock-Based Compensation - Summary of Nonvested Performance-based Share Awards (Details) - Nonvested Shares | 36 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
13% | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Three-Year Book Value Per Share CAGR | 10.00% | 13.00% |  |  |  |
13% | ≤25th percentile | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 100.00% | 100.00% |  |  |  |
13% | 50th percentile "Target" | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 150.00% | 150.00% |  |  |  |
13% | ≥75th percentile | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 200.00% | 200.00% |  |  |  |
14% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Three-Year Book Value Per Share CAGR |  |  | 14.00% |  |  |
14% | ≤25th percentile |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 100.00% |  |  |
14% | 50th percentile "Target" |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 150.00% |  |  |
14% | ≥75th percentile |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 200.00% |  |  |
12% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Three-Year Book Value Per Share CAGR |  |  | 12.00% |  |  |
12% | ≤25th percentile |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 75.00% |  |  |
12% | 50th percentile "Target" |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 125.00% |  |  |
12% | ≥75th percentile |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 175.00% |  |  |
10% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Three-Year Book Value Per Share CAGR |  |  | 10.00% |  |  |
10% | ≤25th percentile |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 50.00% |  |  |
10% | 50th percentile "Target" |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 100.00% |  |  |
10% | ≥75th percentile |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 150.00% |  |  |
8% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Three-Year Book Value Per Share CAGR |  |  | 8.00% |  |  |
8% | ≤25th percentile |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 25.00% |  |  |
8% | 50th percentile "Target" |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 75.00% |  |  |
8% | ≥75th percentile |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 125.00% |  |  |
6% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Three-Year Book Value Per Share CAGR |  |  | 6.00% |  |  |
6% | ≤25th percentile |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 0.00% |  |  |
6% | 50th percentile "Target" |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 50.00% |  |  |
6% | ≥75th percentile |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile |  |  | 100.00% |  |  |
11% | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Three-Year Book Value Per Share CAGR | 9.00% | 11.00% |  |  |  |
11% | ≤25th percentile | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 75.00% | 75.00% |  |  |  |
11% | 50th percentile "Target" | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 125.00% | 125.00% |  |  |  |
11% | ≥75th percentile | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 175.00% | 175.00% |  |  |  |
9% | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Three-Year Book Value Per Share CAGR | 8.00% | 9.00% |  |  |  |
9% | ≤25th percentile | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 50.00% | 50.00% |  |  |  |
9% | 50th percentile "Target" | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 100.00% | 100.00% |  |  |  |
9% | ≥75th percentile | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 150.00% | 150.00% |  |  |  |
7% | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Three-Year Book Value Per Share CAGR | 6.00% | 7.00% |  |  |  |
7% | ≤25th percentile | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 25.00% | 25.00% |  |  |  |
7% | 50th percentile "Target" | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 75.00% | 75.00% |  |  |  |
7% | ≥75th percentile | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 125.00% | 125.00% |  |  |  |
5% | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Three-Year Book Value Per Share CAGR | 5.00% | 5.00% |  |  |  |
5% | ≤25th percentile | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 0.00% | 0.00% |  |  |  |
5% | 50th percentile "Target" | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 50.00% | 50.00% |  |  |  |
5% | ≥75th percentile | Forecast |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Vesting percentile | 100.00% | 100.00% |  |  |  |
2020 Performance-Based Grants | 13% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  | 13.00% |  |
Nonvested Common Shares Earned |  |  |  | 10.00% |  |
2020 Performance-Based Grants | 14% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  | 14.00% |  |
Nonvested Common Shares Earned |  |  |  | 35.00% |  |
2020 Performance-Based Grants | 15% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  | 15.00% |  |
Nonvested Common Shares Earned |  |  |  | 60.00% |  |
2020 Performance-Based Grants | 16% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  | 16.00% |  |
Nonvested Common Shares Earned |  |  |  | 85.00% |  |
2020 Performance-Based Grants | Maximum | 13% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  | 13.00% |  |
Nonvested Common Shares Earned |  |  |  | 0.00% |  |
2020 Performance-Based Grants | Minimum | 17% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  | 17.00% |  |
Nonvested Common Shares Earned |  |  |  | 100.00% |  |
2019 Performance-Based Grants | 14% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  | 14.00% |
Nonvested Common Shares Earned |  |  |  |  | 10.00% |
2019 Performance-Based Grants | 15% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  | 15.00% |
Nonvested Common Shares Earned |  |  |  |  | 35.00% |
2019 Performance-Based Grants | 16% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  | 16.00% |
Nonvested Common Shares Earned |  |  |  |  | 60.00% |
2019 Performance-Based Grants | 17% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  | 17.00% |
Nonvested Common Shares Earned |  |  |  |  | 85.00% |
2019 Performance-Based Grants | Maximum | 14% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  | 14.00% |
Nonvested Common Shares Earned |  |  |  |  | 0.00% |
2019 Performance-Based Grants | Minimum | 18% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  | 18.00% |
Nonvested Common Shares Earned |  |  |  |  | 100.00% |
2018 Performance-Based Grants | 15% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  |  | 15.00%
Nonvested Common Shares Earned |  |  |  |  |  | 25.00%
2018 Performance-Based Grants | 16% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  |  | 16.00%
Nonvested Common Shares Earned |  |  |  |  |  | 50.00%
2018 Performance-Based Grants | 17% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  |  | 17.00%
Nonvested Common Shares Earned |  |  |  |  |  | 75.00%
2018 Performance-Based Grants | Maximum | 15% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  |  | 15.00%
Nonvested Common Shares Earned |  |  |  |  |  | 0.00%
2018 Performance-Based Grants | Minimum | 18% |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |
Compounded Annual Book Value Per Share Growth |  |  |  |  |  | 18.00%
Nonvested Common Shares Earned |  |  |  |  |  | 100.00%

X
- Definition Represents the compounded annual book value per share growth rate, expressed as a percentage. + References No definition available. + Details
Name: | esnt_CompoundedAnnualBookValueGrowthRate
Namespace Prefix: | esnt_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Compounded Annual Growth Rate, Three Year Book Value + References No definition available. + Details
Name: | esnt_CompoundedAnnualGrowthRateThreeYearBookValue
Namespace Prefix: | esnt_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Awards Earned, Percentage Of Target Shares Granted + References No definition available. + Details
Name: | esnt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardsEarnedPercentageOfTargetSharesGranted
Namespace Prefix: | esnt_
Data Type: | dtr-types1:percentItemType
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 35 -Paragraph 1D -Publisher FASB -URI https://asc.fasb.org//1943274/2147480483/718-10-35-1D Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 35 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480483/718-10-35-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(02) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(03) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(v) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of vesting of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved13PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_RelativeTotalShareholderReturnAxis=esnt_ShareBasedPaymentArrangementLessThanOrEqualTo25thPercentileMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_RelativeTotalShareholderReturnAxis=esnt_ShareBasedPaymentArrangement50thPercentileMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_RelativeTotalShareholderReturnAxis=esnt_ShareBasedPaymentArrangementGreaterThanOrEqualTo75thPercentileMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved14PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved12PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved10PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved8PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved6PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved11PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved9PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved7PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved5PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=esnt_TwoThousandTwentyPerformanceBasedGrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved15PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved16PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved17PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=esnt_TwoThousandNineteenPerformanceBasedGrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | esnt_VestingCriteriaAxis=esnt_CompoundedAnnualGrowthRateThreeYearBookValueAchieved18PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=esnt_TwoThousandEighteenPerformanceBasedGrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |