XML 55 R46.htm IDEA: XBRL DOCUMENT
v3.22.1

Reserve for Losses and Loss Adjustment Expenses - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Sep. 30, 2020 | Dec. 31, 2021 | Dec. 31, 2020
Unusual Risk or Uncertainty [Line Items] |  |  |  |  |
Liability incurred for claims and claim adjustment expenses | $ 909 | $ 1,872 |  |  |
Prior year claims and claims adjustment expense | (131,227) | (15,667) |  |  |
Reserve for losses and LAE, for prior years | 249,400 | 338,300 |  |  |
Benefit recorded in provision for losses | 101,200 |  |  |  |
Reserve for losses and LAE | $ 293,072 | $ 411,123 |  | $ 407,445 | $ 374,941
COVID-19 |  |  |  |  |
Unusual Risk or Uncertainty [Line Items] |  |  |  |  |
Reserve rate | 4.00% |  | 7.00% |  |
Reserve for losses and LAE | $ 136,900 |  |  |  |
Percent change used in calculation of expense | 1.00% |  |  |  |
Effect of percentage point decrease on liability claim and claim expense adjustment expense | $ 35,000 |  |  |  |

X
- Definition Liability For Claims And Claims Adjustment Expense, Effect Of Percentage Point Decrease on Liability Claim And Claim Expense Adjustment Expense + References No definition available. + Details
Name: | esnt_LiabilityForClaimsAndClaimsAdjustmentExpenseEffectOfPercentagePointDecreaseonLiabilityClaimAndClaimExpenseAdjustmentExpense
Namespace Prefix: | esnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liability For Claims And Claims Adjustment Expense, Percent Change Used In Calculation Of Expense + References No definition available. + Details
Name: | esnt_LiabilityForClaimsAndClaimsAdjustmentExpensePercentChangeUsedInCalculationOfExpense
Namespace Prefix: | esnt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Liability, as of the balance sheet date, for amounts representing estimated cost of settling unpaid claims for prior years under the terms of the underlying insurance policies, less estimated reinsurance recoveries on such claims. This includes an estimate for claims which have been incurred but not reported. Claim adjustment expenses represent the costs estimated to be incurred in the settlement of unpaid claims. + References No definition available. + Details
Name: | esnt_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpensePriorYears
Namespace Prefix: | esnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Risk In Force, Reserve Percentage + References No definition available. + Details
Name: | esnt_RiskInForceReservePercentage
Namespace Prefix: | esnt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (cc) -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
Name: | us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after effects of reinsurance, of payments to settle claims incurred in prior periods and related claims settlement costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
Name: | us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, after effects of reinsurance, of increase (decrease) in the liability for unpaid claims and claims adjustment expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
Name: | us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpensePeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
Name: | us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_UnusualRiskOrUncertaintyLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_UnusualOrInfrequentItemAxis=esnt_COVID19Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |