Quarterly cash dividends paid (in dollars per share)
Common Stock, Dividends, Per Share, Cash Paid
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Realized investment gains (losses), net
Realized investment losses, net
Realized Investment Gains (Losses)
Prior years
Favorable prior year development
Prior Year Claims and Claims Adjustment Expense
Maximum Exposure to Loss, Off - Balance Sheet
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Off The Balance Sheet
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Off The Balance Sheet
Award Timing Predetermined
Award Timing Predetermined [Flag]
Related Party Transaction [Axis]
Related Party Transaction [Axis]
Entity File Number
Entity File Number
Fair value of investments deposited with insurance regulatory authorities
Debt Securities, Available-for-Sale, Restricted
Additional Paid-In Capital
Additional Paid-in Capital [Member]
Income from other invested assets
Income from other invested assets
Income (Loss) from Equity Method Investments
Tabular List, Table
Tabular List [Table Text Block]
Unearned premium reserve
Unearned Premiums
Schedule of Dividends Declared and Paid
Dividends Declared [Table Text Block]
Accounting Standards Not Yet Adopted
New Accounting Pronouncements, Policy [Policy Text Block]
Decrease in unearned premiums
(Increase) Decrease in Unearned Premiums, Net
Unrealized Losses
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax
Trading Arrangements, by Individual
Trading Arrangements, by Individual [Table]
Basic (in dollars per share)
Basic earnings per share (in dollars per share)
Earnings Per Share, Basic
Adjustment to Compensation:
Adjustment to Compensation [Axis]
Fair Value
Debt Securities Available For Sale Continuous Unrealized Loss Position [Abstract]
Debt Securities Available For Sale Continuous Unrealized Loss Position [Abstract]
Named Executive Officers, Footnote
Named Executive Officers, Footnote [Text Block]
Catastrophic Event [Axis]
Catastrophic Event [Axis]
Schedule of Statutory Net Income, Statutory Surplus and Contingency Reserve Liability
Statutory Accounting Practices Disclosure [Table Text Block]
Schedule of Segment Information
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Due after 10 years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost
Mortgage Insurance Linked Notes
Mortgage Insurance Linked Notes [Member]
Mortgage Insurance Linked Notes [Member]
Schedule of Investments Available for Sale
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]
Adjustment to Compensation, Amount
Adjustment to Compensation Amount
Number of reinsurance agreements
Number Of Reinsurance Agreements
Number Of Reinsurance Agreements
Concentration risk, percentage
Concentration Risk, Percentage
Affiliated Entity
Affiliated Entity [Member]
Other assets
Increase (Decrease) in Other Operating Assets
Consolidation
Consolidation, Policy [Policy Text Block]
Stock-based compensation expense
Share-Based Payment Arrangement, Noncash Expense
Maximum number of votes per share for certain shareholders under 9.5% shareholder provision
Maximum Number Of Votes Certain Shareholders Under 9.5 Percent Shareholder Provision
Maximum Number Of Votes Certain Shareholders Under 9.5 Percent Shareholder Provision
Employee Stock Option
Share-Based Payment Arrangement, Option [Member]
Award Timing MNPI Disclosure
Award Timing MNPI Disclosure [Text Block]
Accounts receivable
Financing Receivable, after Allowance for Credit Loss
Consumer, non-cyclical
Consumer, Non-cyclical Sector [Member]
Consumer, Non-cyclical Sector [Member]
Maximum Exposure to Loss, On - Balance Sheet
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount On The Balance Sheet
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount On The Balance Sheet
Purchase of other invested assets
Payments to Acquire Equity Method Investments
Issuance of management incentive shares
Shares Issued, Value, Share-Based Payment Arrangement, before Forfeiture
Total stockholders’ equity
Balance, beginning of period
Balance, end of period
Total equity
Equity, Attributable to Parent
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Unrealized holding gains (losses) arising during the period
OCI, before Reclassifications, Net of Tax, Attributable to Parent
Debt Securities, Available-for-sale [Table]
Debt Securities, Available-for-Sale [Table]
Insider Trading Policies and Procedures [Line Items]
Compensation expense
Share-Based Payment Arrangement, Expense
Common shares, authorized (in shares)
Authorized share capital (in shares)
Common Stock, Shares Authorized
Other underwriting and operating expenses
Other underwriting and operating expenses
Other Underwriting and Operating Expenses
Represents the aggregate amount of costs incurred during the period, such as those relating to general administration and policy maintenance that do not vary with, and are not primarily related to the acquisition or renewal of insurance contracts and other operating costs, that are associated with the entity's normal revenue producing operation.
Financial Assets:
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
2024 Performance-Based Grants
Two Thousand Twenty Four Performance-Based Grants [Member]
Two Thousand Twenty Four Performance-Based Grants
Total liabilities and stockholders’ equity
Liabilities and Equity
Recurring
Fair Value, Recurring [Member]
Deferred policy acquisition costs
Deferred Policy Acquisition Cost
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Axis]
Incentive Program Bonus Award Fiscal Year Performance
Incentive Program Bonus Award Fiscal Year Performance [Member]
Represents an incentive program covering bonus awards based on performance for previous fiscal year.
Liabilities and Stockholders’ Equity
Liabilities and Equity [Abstract]
Cover [Abstract]
Cover [Abstract]
Less: Reclassification adjustment for (gains) losses included in net income
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent
Maximum
Maximum [Member]
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net [Abstract]
Accounting Policies [Abstract]
Accounting Policies [Abstract]
Total
Debt Securities, Available-for-Sale, Unrealized Loss Position
Credit facility expiration period
Line of Credit Facility, Expiration Period
Nonvested Shares
Restricted Stock [Member]
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Total Compensation Amount
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Schedule of Nonvested Common Share and Nonvested Common Share Unit Activity
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
Treasury Stock
Treasury Stock, Common [Member]
Total fair value of shares vested
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value
Internal Investment Grade
Internal Investment Grade [Member]
Dividends Payable [Line Items]
Dividends Payable [Line Items]
Liability for Catastrophe Claims [Line Items]
Liability for Catastrophe Claims [Line Items]
Adjustment to Non-PEO NEO Compensation Footnote
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
Pay vs Performance Disclosure [Line Items]
Direct
Direct Premiums Earned
Unearned premium reserve
Increase (Decrease) in Unearned Premiums
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Liabilities
Liabilities [Abstract]
Non-Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Entity Shell Company
Entity Shell Company
Stockholders’ Equity
Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract]
XOL 2020-1
XOL 2020-1 [Member]
XOL 2020-1
Nonvested Shares or Share Units Outstanding
Nonvested Shares, Share Units [Member]
Nonvested Shares, Share Units [Member]
OXL, Total
OXL [Member]
OXL
Reserve for losses and LAE
Increase (Decrease) in Liability for Claims and Claims Adjustment Expense Reserve
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Operating Segments
Operating Segments [Member]
Schedule of Variable Interest Entities [Table]
Variable Interest Entity [Table]
Radnor Re 2021-2 Ltd.
Radnor Re 2021-2 Ltd [Member]
Radnor Re 2021-2 Ltd
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Company Selected Measure Amount
Company Selected Measure Amount
Cash
Cash
Award Timing MNPI Considered
Award Timing MNPI Considered [Flag]
Credit Facility [Table]
Line of Credit Facility [Table]
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Increased in contingency reserve
Statutory Accounting Practices, Increase (Decrease) in Contingency Reserve
Represents the amount of increase (decrease) in contingency reserve.
Name
Measure Name
Essent Guaranty
Essent Guaranty Inc [Member]
Represents information pertaining to Essent Guaranty, Inc. (Essent Guaranty), a regulated and licensed indirect wholly-owned subsidiary of the reporting entity.
Term Loan
Secured Debt [Member]
Other comprehensive income (loss)
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent
Proceeds from maturity and paydowns of investments available for sale
Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale
Industry Sector [Domain]
Industry Sector [Domain]
Net deferred tax liability
Deferred Income Tax Liabilities, Net
Document Fiscal Period Focus
Document Fiscal Period Focus
Basic Materials
Basic Materials Sector [Member]
Basic Materials Sector [Member]
Goodwill and acquired intangible assets, net
Intangible Assets, Net (Including Goodwill)
Award Timing Method
Award Timing Method [Text Block]
Award Type [Axis]
Award Type [Axis]
Carrying amount
Long-Term Debt
Radnor Re 2023-1 Ltd.
Radnor Re 2023-1 Ltd [Member]
Radnor Re 2023-1 Ltd
Legal Entity [Axis]
Legal Entity [Axis]
Deferred policy acquisition costs
Increase (Decrease) in Deferred Policy Acquisition Costs
Total assets
Assets
Reinsurance retention policy, debt issued to cover insurance, term
Reinsurance, Debt Issued To Cover Insurance, Term
Reinsurance, Debt Issued To Cover Insurance, Term
Insurance Premium Revenue Recognition
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Investing Activities
Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract]
Investment, Name [Domain]
Investment, Name [Domain]
Trading Symbol
Trading Symbol
Vested (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
XOL 2025-1
XOL 2025-1 [Member]
XOL 2025-1
Minimum number of votes per share for other shareholders under 9.5% shareholder provision
Minimum Number Of Votes Other Shareholders
Minimum Number Of Votes Other Shareholders
Entity Address, City or Town
Entity Address, City or Town
Concentration Risk Type [Axis]
Concentration Risk Type [Axis]
Non-PEO NEO Average Compensation Actually Paid Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Unassigned surplus
Dividend Payments Restrictions Schedule, Statutory Capital and Surplus
Nonvested Share Units
Time-Based Share Units
Restricted Stock Units (RSUs) [Member]
Compensation Actually Paid vs. Other Measure
Compensation Actually Paid vs. Other Measure [Text Block]
Dividends Restrictions
Statutory Accounting Practices [Line Items]
Due after 1 but within 5 years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost
Variable Interest Entity [Line Items]
Variable Interest Entity [Line Items]
Entity Emerging Growth Company
Entity Emerging Growth Company
Quarterly cash dividends declared (in dollars per share)
Common Stock, Dividends, Per Share, Declared
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Lease liabilities arising from obtaining right-of-use assets
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Investments available for sale
Debt Securities, Available-for-Sale [Line Items]
Credit facility repayments
Repayments of Lines of Credit
Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year
Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member]
Significant Other Observable Inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Debt issuance costs, net
Debt Issuance Costs, Net
Other invested assets
Equity Method Investments
Insider Trading Policies and Procedures Not Adopted
Insider Trading Policies and Procedures Not Adopted [Text Block]
Related Party
Related Party [Member]
Common shares, outstanding (in shares)
Common Stock, Shares, Outstanding
Insurance [Abstract]
Insurance [Abstract]
Plan Name [Axis]
Plan Name [Axis]
Other assets, fair value
Other Assets, Fair Value Disclosure
PEO
PEO [Member]
Schedule of Amortized Cost and Fair Value of Investments Available for Sale by Contractual Maturity
Investments Classified by Contractual Maturity Date [Table Text Block]
Certain Senior Management
Certain Senior Management [Member]
Represents some, but not all, of a team of individuals at the highest level of organizational management who have the day-to-day responsibilities of managing the entity.
Noncash Transactions
Noncash Investing and Financing Items [Abstract]
Tax Effect
AOCI Attributable To Parent, Tax [Roll Forward]
AOCI Attributable To Parent, Tax
6%
Compounded Annual Growth Rate, Three Year Book Value Achieved, 6 Percent [Member]
Compounded Annual Growth Rate, Three Year Book Value Achieved, 6 Percent
Issuance of senior notes
Proceeds from Issuance of Senior Long-Term Debt
Due in 1 year
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value
Change in:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member]
Retained Earnings
Retained Earnings [Member]
Net loss and LAE payments during the current period
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid
Number of Shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Restatement Determination Date
Restatement Determination Date
Share-based Payment Arrangement [Abstract]
Share-Based Payment Arrangement [Abstract]
Cash at beginning of year
Cash at end of period
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Income tax expense
Income Tax Expense (Benefit)
12 months or more
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer
Unrealized holding gains (losses) arising during the period
OCI, before Reclassifications, before Tax, Attributable to Parent
Remaining Insurance in Force
Reinsurance, Remaining Insurance In Force
Reinsurance, Remaining Insurance In Force
Net premiums written:
Premiums Written, Net [Abstract]
Other assets
Other Assets
Pension Adjustments Service Cost
Pension Adjustments Service Cost [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Line of credit facility, accordion feature
Line of Credit Facility, Accordion Feature, Increase Limit
Line of Credit Facility, Accordion Feature, Increase Limit
Investments
Investments
Fair Value
Debt Securities, Available-for-Sale [Abstract]
Reinsurer Concentration Risk
Reinsurer Concentration Risk [Member]
Add provision for losses and LAE, net of reinsurance, occurring in:
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims [Abstract]
2022 Performance-Based Grants
Two Thousand Twenty Two Performance-Based Grants [Member]
Two Thousand Twenty Two Performance-Based Grants
Net investment income
Net investment income
Net Investment Income
Ceding Percentage
Reinsurance, Ceded Premiums Earned, Percent Of Risk On All Other Eligible Policies
Reinsurance, Ceded Premiums Earned, Percent Of Risk On All Other Eligible Policies
Restatement does not require Recovery
Restatement Does Not Require Recovery [Text Block]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Indemnifications related to contract underwriting services
Indemnification Agreement [Member]
Compensation Actually Paid vs. Company Selected Measure
Compensation Actually Paid vs. Company Selected Measure [Text Block]
Residential mortgage down payment percentage for which mortgage insurance is generally required (less than)
Financing Receivable Consumer Mortgage Insured Down Payment Percentage
Represents the percentage of the total sale price that a home buyer contributes in cash towards the purchase of a home for which mortgage insurance is generally required.
City Area Code
City Area Code
Award Timing, How MNPI Considered
Award Timing, How MNPI Considered [Text Block]
All Trading Arrangements
All Trading Arrangements [Member]
Equity Awards Adjustments, Footnote
Equity Awards Adjustments, Footnote [Text Block]
Total Shareholder Return Vs Peer Group
Total Shareholder Return Vs Peer Group [Text Block]
Debt instrument, redemption price, percentage
Debt Instrument, Redemption Price, Percentage
Outstanding at beginning of year (in shares)
Outstanding at end of period (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Pay vs Performance Disclosure
Pay vs Performance Disclosure [Table]
Net cash provided by operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Debt instrument, term
Debt Instrument, Term
Proceeds from sales of investments available for sale
Proceeds from Sale of Debt Securities, Available-for-Sale
Cancellation of treasury stock
Treasury Stock, Retired, Cost Method, Amount
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis]
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis]
Subsequent Event
Subsequent Event [Member]
Goodwill
Goodwill
Equity Valuation Assumption Difference, Footnote
Equity Valuation Assumption Difference, Footnote [Text Block]
Current period
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year
PEO Total Compensation Amount
PEO Total Compensation Amount
Long-Term Debt, Type [Axis]
Long-Term Debt, Type [Axis]
Money market funds
Money Market Funds [Member]
Equity Components [Axis]
Equity Components [Axis]
Non-Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Subtotal
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value
Three-Year Book Value Per Share CAGR
Compounded Annual Growth Rate, Three Year Book Value
Compounded Annual Growth Rate, Three Year Book Value
Number of reportable segments
Number of Reportable Segments
Recently Issued Accounting Standards
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]
Maximum Exposure to Loss, Total
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss (Gain) Exposure, Amount
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss (Gain) Exposure, Amount
Supplemental Disclosure of Cash Flow Information
Supplemental Cash Flow Information [Abstract]
Amortized cost
Amortized Cost
Amortized Cost
Debt Securities, Available-for-Sale, Amortized Cost
Entity Address, Country
Entity Address, Country
Other Performance Measure, Amount
Other Performance Measure, Amount
Payment of debt issuance costs
Payments of Debt Issuance Costs
Vesting percent
Vesting percentile
Share-based Compensation Arrangement by Share-based Payment Award, Awards Earned, Percentage Of Target Shares Granted
Share-based Compensation Arrangement by Share-based Payment Award, Awards Earned, Percentage Of Target Shares Granted
Related Party [Domain]
Related and Nonrelated Parties [Domain]
Dividends and dividend equivalents declared
Dividends
Essent Re
Essent Reinsurance Ltd [Member]
Represents information pertaining to Essent Reinsurance Ltd. (Essent Re), a wholly-owned Bermuda-domiciled Class 3A Insurer licensed pursuant to Section 4 of the Bermuda Insurance Act 1978, which offers mortgage-related insurance and reinsurance.
Credit Concentration Risk
Credit Concentration Risk [Member]
Shareholder ownership threshold for voting rights
Shareholder Voting Rights Ownership Percentage Threshold
Shareholder Voting Rights Ownership Percentage Threshold
Other comprehensive income (loss):
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract]
Individual:
Individual [Axis]
Vesting [Axis]
Vesting [Axis]
Fair Value of Financial Instruments
Fair Value of Financial Instruments, Policy [Policy Text Block]
Dividends paid
Payments of Ordinary Dividends, Common Stock
Additional paid-in capital
Additional Paid in Capital, Common Stock
Entity [Domain]
Entity [Domain]
Net cash used in investing activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table
Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member]
2023 Performance-Based Grants
Two Thousand Twenty Three Performance-Based Grants [Member]
Two Thousand Twenty Three Performance-Based Grants
Interest payments
Interest Paid, Excluding Capitalized Interest, Operating Activity
Document Fiscal Year Focus
Document Fiscal Year Focus
Schedule of Effects of Reinsurance
Effects of Reinsurance [Table Text Block]
Basis of Accounting
Basis of Accounting, Policy [Policy Text Block]
Forgone Recovery, Explanation of Impracticability
Forgone Recovery, Explanation of Impracticability [Text Block]
Entity Interactive Data Current
Entity Interactive Data Current
Contingency reserve liability
Statutory Accounting Practices, Statutory Contingency Reserve Liability
Represents the amount of contingency reserve liability, as of the balance sheet date, using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.
Investment company, committed capital
Investment Company, Committed Capital
Operating Activities
Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract]
Plan Name [Domain]
Plan Name [Domain]
Expected weighted average period for recognition of expense
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Catastrophic Event [Domain]
Catastrophic Event [Domain]
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense [Abstract]
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense [Abstract]
XOL 2022-1
XOL 2022-1 [Member]
XOL 2022-1
Equity [Abstract]
Number of votes per share
Common Stock Number Of Votes
Common Stock Number Of Votes
Senior Notes due 2029, net
Senior Notes
Statutory surplus
Statutory Accounting Practices, Statutory Surplus Balance
Represents the amount of statutory surplus (stockholders' equity), as of the balance sheet date, using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.
Net premiums earned:
Premiums Earned, Net [Abstract]
Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]
Segment Reporting
Segment Reporting Disclosure [Text Block]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Treasury securities
U.S. Treasury securities:
US Treasury Securities [Member]
Changes in Stockholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Gross Unrealized Losses
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
Accumulated Other Comprehensive Income (Loss)
Comprehensive Income (Loss) Note [Text Block]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
AOCI before tax, beginning of period
AOCI before tax, end of period
AOCI before Tax, Attributable to Parent
Reinsurance percentage
Reinsurance, Reinsured Risk, Percentage
Schedule of Rollforward of Accumulated Other Comprehensive Loss
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Depreciation and amortization
Depreciation, Depletion and Amortization
Entity Central Index Key
Entity Central Index Key
PEO Name
PEO Name
Vesting Criteria [Domain]
Vesting Criteria [Domain]
The types of vesting specified for share-based compensation awards.
Total revenues
Revenues
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member]
Recurring fair value measurements
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Vesting Criteria [Axis]
Vesting Criteria [Axis]
Information about the type of vesting for share-based compensation awards.
Radnor Re
Radnor Re [Member]
Radnor Re [Member]
Outstanding Aggregate Erroneous Compensation Amount
Outstanding Aggregate Erroneous Compensation Amount
Provision for losses and LAE
Net incurred losses and LAE during the current period
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims
Revolving Credit Facility
Revolving Credit Facility [Member]
Direct
Direct Premiums Written
Other comprehensive income:
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Wildfire
Wildfire [Member]
Wildfire
Arrangement Duration
Trading Arrangement Duration
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
First Vesting Date
Share-Based Payment Arrangement, Tranche One [Member]
Statutory net income
Statutory net income
Statutory Accounting Practices, Statutory Net Income Amount
Existing Credit Facility
Existing Credit Facility [Member]
Existing Credit Facility
Net premiums written
Net premiums written
Premiums Written, Net
Segments [Axis]
Segments [Axis]
Exercise Price
Award Exercise Price
Entity Filer Category
Entity Filer Category
Local Phone Number
Local Phone Number
Additional 402(v) Disclosure
Additional 402(v) Disclosure [Text Block]
Total unrecognized compensation expense
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount
Dividends Restrictions
Dividend Payment Restrictions [Text Block]
Vesting Based On Performance
Vesting Based On Performance [Member]
Represents a share based compensation award with vesting based on achievement of performance conditions.
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Stock-Based Compensation
Share-Based Payment Arrangement [Text Block]
Stock repurchased (in shares)
Stock Repurchased and Retired During Period, Shares
6.250% Senior Notes due 2029
6.250% Senior Notes due 2029 [Member]
6.250% Senior Notes due 2029
Liability for Catastrophe Claims [Table]
Liability for Catastrophe Claims [Table]
Assets
Assets [Abstract]
Credit Facility [Axis]
Credit Facility [Axis]
Underlying Security Market Price Change
Underlying Security Market Price Change, Percent
Vesting [Domain]
Vesting [Domain]
Debt Instrument [Axis]
Debt Instrument [Axis]
Forfeited (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Fair Value of Financial Instruments
Fair Value Disclosures [Text Block]
Credit Facility [Domain]
Credit Facility [Domain]
Stockholders’ Equity
Equity, Attributable to Parent [Abstract]
Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year
Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member]
Total losses and expenses
Benefits, Losses and Expenses
Vesting percentage
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage
Percentage of debt securities
Investment Owned, Net Assets, Percentage
Number of states in which the entity is licensed to write mortgage insurance
Number of States in which Entity Operates
Entity Address, Address Line One
Entity Address, Address Line One
Entity Address, Address Line Two
Entity Address, Address Line Two
Treasury stock acquired
Treasury Stock, Value, Acquired, Cost Method
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent [Member]
Debt instrument, interest rate, stated percentage
Debt Instrument, Interest Rate, Stated Percentage
Investment, Name [Axis]
Investment, Name [Axis]
Shares tendered by employees to pay employee withholding taxes (in shares)
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation
Investments [Domain]
Investments [Domain]
Less: Reinsurance recoverables
Plus: Reinsurance recoverables
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments
Fair Value
Debt Securities, Trading and Available-for-Sale
Internal Credit Assessment [Axis]
Internal Credit Assessment [Axis]
Internal Credit Assessment [Domain]
Internal Credit Assessment [Domain]
Industry Sector [Axis]
Industry Sector [Axis]
Fair Value as of Grant Date
Award Grant Date Fair Value
Entity Registrant Name
Entity Registrant Name
Stock Price or TSR Estimation Method
Stock Price or TSR Estimation Method [Text Block]
Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table]
Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table]
Municipal debt securities
Municipal debt securities
Municipal debt securities
Municipal Bonds [Member]
Compensation and benefits
Employee Benefits and Share-Based Compensation
Reinsurance for mortgage insurance coverage in excess of 25%
Excess Mortgage Insurance Coverage [Member]
Represents an arrangement to assume that portion of the risk retained by an affiliate that is in excess of 25% of the balance of any mortgage loan insured by that affiliate after consideration of other reinsurance agreements at that affiliate, in accordance with certain state law requirements.
Granted (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Title of Individual [Domain]
Title and Position [Domain]
Forfeited (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Document Quarterly Report
Document Quarterly Report
Less than 12 months
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months
Total assets at fair value
Assets, Fair Value Disclosure
Remaining First Layer Retention
Reinsurance, Amount Retained, Per Life
Estimated fair value
Long-Term Debt, Fair Value
Number of investment securities in an unrealized loss position
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions
Changed Peer Group, Footnote
Changed Peer Group, Footnote [Text Block]
Counterparty Name [Domain]
Counterparty Name [Domain]
Number of operating segments
Number of Operating Segments
Fair value of the required investments on deposit in trusts
Asset, Held-in-Trust
Adjustment To PEO Compensation, Footnote
Adjustment To PEO Compensation, Footnote [Text Block]
Accrued investment income
Accrued Investment Income Receivable
Investment Type [Axis]
Investment Type [Axis]
Change in unrealized appreciation of investments, net of tax expense
Other Comprehensive Income (Loss), Available-for-Sale Securities, Tax, Portion Attributable to Parent
Granted (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Related Party [Axis]
Related and Nonrelated Parties [Axis]
Total investments
Investments
Title
Trading Arrangement, Individual Title
Peer Group Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
Special revenue bonds
Special Revenue Municipal Bonds [Member]
A municipal bond whose debt service is payable solely from the revenues derived from operating the facilities acquired or constructed with the proceeds of the bonds.
RIF ceded
Risk In Force, Ceded
Risk In Force, Ceded
Restatement Determination Date:
Restatement Determination Date [Axis]
Schedule of Coverages and Retentions
Reinsurance Retention [Table Text Block]
Non-PEO NEO
Non-PEO NEO [Member]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
2013 Plan
Essent Group Limited 2013 Long Term Incentive Plan [Member]
Represents the Essent Group Limited 2013 Long-term Incentive Plan (2013 Plan).
QSR-2023
QSR 2023 [Member]
QSR 2023
Due after 5 but within 10 years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Amortized Cost
Premium and other taxes
Premium And Other Taxes
Premium And Other Taxes
Net change in short-term investments
Payments for (Proceeds from) Short-Term Investments
Prepaid federal income tax
Increase (Decrease) in Mortgage Guaranty Insurer United States Mortgage Guaranty Tax and Loss Bonds
Represents, for a mortgage guaranty insurer, the increase (decrease) during the reporting period in the amount of investment in United States Mortgage Guaranty Tax and Loss Bonds issued by the Treasury Department for eligibility for certain tax deductions under enacted tax laws.
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Dilutive effect of nonvested shares (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Nonvested Shares with Forfeitable Dividends
Remaining Risk in Force
Reinsurance, Remaining Risk In Force
Reinsurance, Remaining Risk In Force
Unrealized Gains
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax
Name
Trading Arrangement, Individual Name
Award Type [Domain]
Award Type [Domain]
Equity Awards Adjustments
Equity Awards Adjustments [Member]
Limited Partnership Investment
Limited Partnership Investment [Member]
Limited Partnership Investment
Pension Benefits Adjustments, Footnote
Pension Benefits Adjustments, Footnote [Text Block]
Percentage of award issuable if current period end were end of contingency period
Share-based Compensation Arrangement by Share-based Payment Award, Award Period to Date Vesting Rights, Percentage
Percentage of vesting of share-based compensation awards if the end of the current reporting period were the end of the vesting period.
Other income
Other Income
Number of loans increased in default
Default Loans, Period Increase (Decrease)
Default Loans, Period Increase (Decrease)
Compensation Amount
Outstanding Recovery Compensation Amount
Principal amount
Debt Instrument, Face Amount
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Schedule of Reconciliation of Beginning and Ending Reserve Balances for Losses and Loss Adjustment Expenses (LAE)
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Recovery of Erroneously Awarded Compensation Disclosure [Line Items]
Vesting Based On Service
Vesting Based On Service [Member]
Represents a share based compensation award with vesting based on length of service.
Employee
Employee [Member]
Employee [Member]
Ceded premiums earned related to percent of risk on eligible single premium policies
Reinsurance, Ceded Premiums Earned, Percent Of Risk On Eligible Single Premium Policies
Reinsurance, Ceded Premiums Earned, Percent Of Risk On Eligible Single Premium Policies
MNPI Disclosure Timed for Compensation Value
MNPI Disclosure Timed for Compensation Value [Flag]
Name
Awards Close in Time to MNPI Disclosures, Individual Name
Communications
Communications Sector [Member]
Communications Sector [Member]
Other liabilities
Other Accrued Liabilities
Outstanding at beginning of year (in dollars per share)
Outstanding at end of period (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Aggregate Erroneous Compensation Not Yet Determined
Aggregate Erroneous Compensation Not Yet Determined [Text Block]
Revenues:
Revenues [Abstract]
Nonvested Shares, Share Units or DEU
Nonvested Shares, Share Units Or DEU [Member]
Nonvested Shares, Share Units Or DEU [Member]
Amortized Cost
Debt Securities, Available-for-Sale, Maturity, Fair Value, Rolling Maturity [Abstract]
Reinsurance for mortgage insurance coverage threshold (in excess of)
Reinsurance Retention Policy, Reinsured Risk, Percentage Threshold
Threshold percentage of risk reinsured on insurance products per entity policy.
Stock-based compensation expense
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
Accrued investment income
Increase (Decrease) in Accrued Investment Income Receivable
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Unrealized holding gains (losses) arising during the period
Other Comprehensive Income (Loss) before Reclassifications, Tax
Reserve for losses and LAE, for prior years
Liability for Unpaid Claims and Claims Adjustment Expense Prior Years
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.
Financial Instruments [Domain]
Financial Instruments [Domain]
Radnor Re, Total
Radnor Re, Total [Member]
Radnor Re, Total
Segments [Domain]
Segments [Domain]
Fixed maturities
Fixed Maturities [Member]
Performance-based share awards
Performance Shares [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Investments
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Aggregate Pension Adjustments Service Cost
Aggregate Pension Adjustments Service Cost [Member]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Components of net investment income
Net Investment Income [Line Items]
9%
Compounded Annual Growth Rate, Three Year Book Value Achieved, 9 Percent [Member]
Compounded Annual Growth Rate, Three Year Book Value Achieved, 9 Percent
Mortgage Insurance
Mortgage Insurance Segment [Member]
Mortgage Insurance Segment
Minimum
Minimum [Member]
Accumulated Net Investment Gains (Losses) On Investments
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
XOL 2019-1
XOL 2019-1 [Member]
XOL 2019-1
Credit facility borrowings
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Goodwill decreased
Goodwill, Measurement Period Adjustment
Company Selected Measure Name
Company Selected Measure Name
Senior Notes
Senior Notes [Member]
Purchase of investments available for sale
Payments to Acquire Debt Securities, Available-for-Sale
Debt Obligations
Debt Disclosure [Text Block]
Aggregate Available
Trading Arrangement, Securities Aggregate Available Amount
Essent PA
Essent PA [Member]
Essent PA [Member]
Forfeiture of management incentive shares
Shares Issued, Value, Share-Based Payment Arrangement, Forfeited
Remaining Reinsurance in Force
Total VIE Assets
Reinsurance, Remaining Reinsurance In Force
Reinsurance, Remaining Reinsurance In Force
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
All Executive Categories
All Executive Categories [Member]
Released contingency reserve
Statutory Accounting Practices, Release of Contingency Reserve
Statutory Accounting Practices, Release of Contingency Reserve
Current period
Current Year Claims and Claims Adjustment Expense
Common shares, $0.015 par value: Authorized - 233,333; issued and outstanding - 0 shares in 2025 and 105,015 shares in 2024
Common Stock, Value, Issued
Net premiums earned
Net premiums earned
Premiums Earned, Net
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Second Vesting Date
Share-Based Payment Arrangement, Tranche Two [Member]
Title of Individual [Axis]
Title and Position [Axis]
Diluted (in shares)
Diluted weighted average shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
XOL 2023-1
XOL 2023-1 [Member]
XOL 2023-1
≥75th percentile
Share-based Payment Arrangement, Greater than or Equal to 75th Percentile [Member]
Share-based Payment Arrangement, Greater than or Equal to 75th Percentile
Commitments and contingencies (see Note 7)
Commitments and Contingencies
Non-GAAP Measure Description
Non-GAAP Measure Description [Text Block]
Industrial
Industrial Sector [Member]
Industrial Sector [Member]
Entity Small Business
Entity Small Business
Other underwriting and operating expenses
Other Underwriting and Operating Expenses, Other
Other Underwriting and Operating Expenses, Other
Securities
Securities [Member]
Securities [Member]
Document Transition Report
Document Transition Report
Schedule of Net Investment Income
Investment Income [Table Text Block]
Short-term investments
Short-Term Investments [Member]
Underlying Securities
Award Underlying Securities Amount
Realized gross gains
Debt Securities, Available-for-Sale, Realized Gain
Equity Component [Domain]
Equity Component [Domain]
Document Period End Date
Document Period End Date
PEO Actually Paid Compensation Amount
PEO Actually Paid Compensation Amount
Awards Close in Time to MNPI Disclosures, Table
Awards Close in Time to MNPI Disclosures [Table Text Block]
Scenario [Axis]
Scenario [Axis]
Vesting Based On Service And Performance
Vesting Based On Service And Performance [Member]
Represents a share based compensation award with vesting based on a combination of length of service and achievement of performance conditions.
Investment company, asset liquidation period
Investment Company, Asset Liquidation Period
Investment Company, Asset Liquidation Period
≤25th percentile
Share-based Payment Arrangement, Less than or Equal to 25th Percentile [Member]
Share-based Payment Arrangement, Less than or Equal to 25th Percentile
Document Type
Document Type
Significant Unobservable Inputs (Level 3)
Fair Value, Inputs, Level 3 [Member]
Earnings per Share (EPS)
Earnings Per Share [Text Block]
Reserve for Losses and Loss Adjustment Expenses
Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block]
Name
Outstanding Recovery, Individual Name
Loss Contingencies [Table]
Loss Contingencies [Table]
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain]
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain]
Realized gross losses
Debt Securities, Available-for-Sale, Realized Loss
Residential and commercial mortgage securities
Residential and commercial mortgage securities
Residential And Commercial Mortgage Securities [Member]
Residential And Commercial Mortgage Securities [Member]
All Individuals
All Individuals [Member]
Long-Term Debt, Type [Domain]
Long-Term Debt, Type [Domain]
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
Purchase of property and equipment
Payments to Acquire Property, Plant, and Equipment
Name
Forgone Recovery, Individual Name
Investment Income [Table]
Investment Income [Table]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested
Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member]
10%
Compounded Annual Growth Rate, Three Year Book Value Achieved, 10 Percent [Member]
Compounded Annual Growth Rate, Three Year Book Value Achieved, 10 Percent
Share repurchase approved amount
Share Repurchase Program, Authorized, Amount
Weighted average interest rate during period
Debt, Weighted Average Interest Rate
Excise taxes payable for share repurchases
Excise Tax Payable
Excise Tax Payable
Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Amount
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Amortization of premium on investment securities
Investment Income, Amortization of Premium
Peer Group Issuers, Footnote
Peer Group Issuers, Footnote [Text Block]
Due after 1 but within 5 years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value
Erroneous Compensation Analysis
Erroneous Compensation Analysis [Text Block]
Total other comprehensive income
Other comprehensive income
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Credit Facility [Line Items]
Line of Credit Facility [Line Items]
AOCI tax effect, beginning of period
AOCI tax effect, end of period
AOCI Tax, Attributable to Parent
Rule 10b5-1 Arrangement Terminated
Rule 10b5-1 Arrangement Terminated [Flag]
Quoted Prices in Active Markets for Identical Instruments (Level 1)
Fair Value, Inputs, Level 1 [Member]
Statutory Accounting Practices [Table]
Statutory Accounting Practices [Table]
Other accrued liabilities
Increase (Decrease) in Accrued Liabilities
Performance period
Share Based Compensation Arrangement by Share Based Payment Award Performance Period
Represents the period over which a performance condition to the award is measured, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
Diluted (in dollars per share)
Diluted earnings per share (in dollars per share)
Earnings Per Share, Diluted
Forecast
Forecast [Member]
Radnor Re 2024-1 Ltd.
Radnor Re 2024-1 Ltd [Member]
Radnor Re 2024-1 Ltd
Erroneously Awarded Compensation Recovery
Erroneously Awarded Compensation Recovery [Table]
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Domain]
Title of 12(b) Security
Title of 12(b) Security
Schedule of Portion of Nonvested Common Shares Earned based upon Achievement of Compounded Annual Book Value per share Growth
Schedule of Shares Earned Unvested Performance Shares [Table Text Block]
Tabular disclosure of shares earned for unvested performance shares.
Due in 1 year
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost
Schedule of Realized Gross Gains and Losses on Sale of Investments Available for Sale
Schedule of Realized Gain (Loss) [Table Text Block]
Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive income (loss):
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Hurricane
Hurricane [Member]
Earnings per share:
Earnings Per Share [Abstract]
Dividends paid to parent company
SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Consolidated Subsidiaries
Deduct payments for losses and LAE, net of reinsurance, occurring in:
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract]
Consolidation Items [Domain]
Consolidation Items [Domain]
Return of investment from other invested assets
Proceeds from Equity Method Investment, Distribution, Return of Capital
Investments, Debt and Equity Securities [Abstract]
Investments, Debt and Equity Securities [Abstract]
Amount available for dividend distribution
Amount Available for Dividend Distribution without Affecting Capital Adequacy Requirements
VIE
Variable Interest Entity, Not Primary Beneficiary [Member]
Reinsurance Policy, Type [Axis]
Reinsurance Contract [Axis]
Stock repurchased, value
Stock Repurchased and Retired During Period, Value
Reinsurance Risk In Force Affected
Reinsurance Risk In Force Affected [Member]
Reinsurance Risk In Force Affected
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Income tax payments
Income Taxes Paid, Net
Collaborative Arrangement and Arrangement Other than Collaborative [Table]
Collaborative Arrangement and Arrangement Other than Collaborative [Table]
Award Timing Disclosures [Line Items]
Amount outstanding, gross
Long-Term Debt, Gross
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Net reserve for losses and LAE at beginning of period
Net reserve for losses and LAE at end of period
Liability for Unpaid Claims and Claims Adjustment Expense, Net
Property and equipment (at cost, less accumulated depreciation of $75,113 in 2025 and $72,270 in 2024)
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization
Capital Stock
Equity [Text Block]
Due after 5 but within 10 years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value
Reinsurance
Reinsurance [Text Block]
Net income
Net income
Net income
Net Income (Loss) Attributable to Parent
Corporate expense allocations
Intersegment Eliminations [Member]
Schedule of Fair Value of Investments in an Unrealized Loss Position and Related Unrealized Losses
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]
Expiration Date
Trading Arrangement Expiration Date
Non-U.S. government securities
Non-U.S. government securities
Debt Security, Government, Non-US [Member]
Vesting period
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period
Change in unrealized appreciation of investments, net of tax expense of $9,000 and $20,049 in the three months ended September 30, 2025 and 2024, and $22,365 and $15,335 in the nine months ended September 30, 2025 and 2024, respectively.
Other Comprehensive Income (Loss), Available-for-Sale Securities Adjustment, Net of Tax, Portion Attributable to Parent
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Relative Total Shareholder Return [Axis]
Relative Total Shareholder Return [Axis]
Relative Total Shareholder Return
Ceded
Ceded Premiums Written
Treasury stock acquired
Payments for Repurchase of Common Stock
Adoption Date
Trading Arrangement Adoption Date
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Net Income [Text Block]
Before Tax
AOCI Attributable To Parent, Before Tax [Roll Forward]
AOCI Attributable To Parent, Before Tax [Roll Forward]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Entity Current Reporting Status
Entity Current Reporting Status
QSR
QSR [Member]
QSR
Awards Close in Time to MNPI Disclosures
Awards Close in Time to MNPI Disclosures [Table]
Financing Activities
Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract]
2025 Performance-Based Grants
Two Thousand Twenty Five Performance-Based Grants [Member]
Two Thousand Twenty Five Performance-Based Grants
Line of Credit
Line of Credit [Member]
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Retained earnings
Retained Earnings (Accumulated Deficit)
QSR-2019
QSR 2019 [Member]
QSR 2019
Schedule of Compensation Expense, Net of Forfeitures, and Related Tax Effects Recognized in Connection with Nonvested shares
Share-Based Payment Arrangement, Cost by Plan [Table Text Block]
Loss on disposal of property and equipment
Gain (Loss) on Disposition of Property Plant Equipment
Corporate & Other
Corporate Segment [Member]
Financial Instrument [Axis]
Financial Instrument [Axis]
Losses and expenses:
Benefits, Losses and Expenses [Abstract]
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested
Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member]
Executive Category:
Executive Category [Axis]
7%
Compounded Annual Growth Rate Three Year Book Value Achieved 7 Percent [Member]
Compounded Annual Growth Rate Three Year Book Value Achieved 7 Percent
12 months or more
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Loss ratio
Loss Ratio
Interest expense
Interest Expense, Operating and Nonoperating
Current Fiscal Year End Date
Current Fiscal Year End Date
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Less than 12 months
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table
Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member]
Expense ratio
Expense Ratio
Expense Ratio
Weighted Average Grant Date Fair Value
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Number of share available for future grant (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant
Prior years
Incurred claims and claim adjustment expenses
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years
Statement [Table]
Statement [Table]
Deferred income tax provision
Deferred Income Tax Expense (Benefit)
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
DEUs
Dividend Equivalent Unit [Member]
Dividend Equivalent Unit [Member]
QSR-2025
QSR 2025 [Member]
QSR 2025
Equity Awards Adjustments, Excluding Value Reported in Compensation Table
Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments [Abstract]
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments [Abstract]
Amortization period
Amortization Period Excess of Loss Portfolio
Amortization Period Excess of Loss Portfolio
Total
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss
Utilities
Utilities Sector [Member]
Utilities Sector [Member]
Distribution of income from other invested assets
Proceeds from Equity Method Investment, Distribution
Schedule of Assets and Liabilities Measured at Fair Vale on a Recurring Basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
QSR-2024
QSR 2024 [Member]
QSR 2024
Nature of Operations and Basis of Presentation
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Antidilutive nonvested shares (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Weighted average shares outstanding:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
XOL 2024-1
XOL 2024-1 [Member]
XOL 2024-1
Radnor Re 2022-1 Ltd.
Radnor Re 2022-1 Ltd [Member]
Radnor Re 2022-1 Ltd
All Adjustments to Compensation
All Adjustments to Compensation [Member]
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Prepaid federal income tax
Mortgage Guaranty Insurer United States Mortgage Guaranty Tax and Loss Bonds
Represents, for a mortgage guaranty insurer, the amount of investment in United States Mortgage Guaranty Tax and Loss Bonds issued by the Treasury Department for eligibility for certain tax deductions under enacted tax laws.
Amendment Flag
Amendment Flag
Income tax benefit
Share-Based Payment Arrangement, Expense, Tax Benefit
Shares authorized (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized
Energy
Energy Sector [Member]
Reserve for losses and LAE
Reserve for losses and LAE at beginning of period
Reserve for losses and LAE at end of period
Liability for Claims and Claims Adjustment Expense
Termination Date
Trading Arrangement Termination Date
Net cash used in financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Adopted [Flag]
Measure:
Measure [Axis]
Technology
Technology Debt Sector [Member]
Technology Debt Sector [Member]
Third Vesting Date
Share-Based Payment Arrangement, Tranche Three [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table]
Dividends Payable [Table]
Dividends Payable [Table]
Basic (in shares)
Basic weighted average shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Schedule of Reconciliation of Net Income and Weighted Average Common Shares Outstanding used in Computations of Basic and Diluted Earnings per Common Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Related Party Transaction [Domain]
Related Party Transaction [Domain]
Segment Reporting [Abstract]
Statutory capital and surplus
Statutory Accounting Practices, Statutory Capital and Surplus, Balance
Quota share reinsurance
Quota Share Reinsurance Transaction [Member]
Represents an agreement between an insurer and a reinsurer whereby the reinsurer pays an agreed-upon percentage of all losses the insurer sustains.
Pay vs Performance Disclosure, Table
Pay vs Performance [Table Text Block]
Due after 10 years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Relative Total Shareholder Return [Domain]
Relative Total Shareholder Return [Domain]
Relative Total Shareholder Return
11%
Compounded Annual Growth Rate Three Year Book Value Achieved 11 Percent [Member]
Compounded Annual Growth Rate Three Year Book Value Achieved 11 Percent
Investment expenses
Investment Income, Investment Expense
Scenario [Domain]
Scenario [Domain]
Less: Reclassification adjustment for gains (loss) included in net income
Reclassification from AOCI, Current Period, Tax
Less: Reclassification adjustment for (gains) losses included in net income
Reclassification from AOCI, Current Period, before Tax, Attributable to Parent
Consumer, cyclical
Consumer, Cyclical Sector [Member]
Consumer, Cyclical Sector [Member]
Schedule of VIE Assets and Total Maximum Exposure to Loss
Schedule of Variable Interest Entities [Table Text Block]
Debt instrument, unamortized discount
Debt Instrument, Unamortized Discount
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Expense of Enforcement, Amount
Ceding commission
Reinsurance, Ceded Premiums Earned, Ceding Commission
Reinsurance, Ceded Premiums Earned, Ceding Commission
Stock-based compensation
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Common shares, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common shares, issued (in shares)
Common Stock, Shares, Issued
Other comprehensive income (loss):
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Parenthetical Disclosure [Abstract]
Financial
Financial Sector [Member]
Financial Sector [Member]
Other comprehensive (loss) income, tax effect
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent
QSR-2022
QSR 2022 [Member]
QSR 2022
Interest expense
Interest Expense, Nonoperating
50th percentile
Share-based Payment Arrangement, 50th Percentile [Member]
Share-based Payment Arrangement, 50th Percentile
Trading Arrangement:
Trading Arrangement [Axis]
Total Shareholder Return Amount
Total Shareholder Return Amount
Impairment loss
Impairment loss (less than for three and nine months ended September 30, 2025)
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Insider Trading Arrangements [Line Items]
Security Exchange Name
Security Exchange Name
Statutory Accounting
Statutory Accounting Disclosure [Text Block]
Represents the entire disclosure pertaining to the statutory accounting.
Total liabilities
Liabilities
Credit facility, commitment fee rate
Line of Credit Facility, Commitment Fee Percentage
U.S. agency mortgage-backed securities
Collateralized Mortgage-Backed Securities [Member]
Subtotal
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost
Property & equipment included in other liabilities
Capital Expenditures Incurred but Not yet Paid
Credit facility, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Ceded
Ceded Premiums Earned
Pension Adjustments Prior Service Cost
Pension Adjustments Prior Service Cost [Member]
Amount paid for remedies (less than)
Loss Contingency Accrual, Payments
Material Terms of Trading Arrangement
Material Terms of Trading Arrangement [Text Block]
Combined ratio
Combined Ratio
Reinsurance Disclosures [Abstract]
Reinsurance Disclosures [Abstract]
Radnor Re 2021-1 Ltd.
Radnor Re 2021-1 Ltd [Member]
Radnor Re 2021-1 Ltd
Time and Performance-Based Share Units
Phantom Share Units (PSUs) [Member]
Statement
Statement [Line Items]
Reconciliation of the beginning and ending reserve balances for losses and loss adjustment expenses (LAE)
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Asset-backed securities
Asset-Backed Securities [Member]
Consolidation Items [Axis]
Consolidation Items [Axis]
Rule 10b5-1 Arrangement Adopted
Rule 10b5-1 Arrangement Adopted [Flag]
General obligation bonds
General Obligation Municipal Bonds [Member]
A bond secured by a pledge of the issuer's taxing powers (limited or unlimited). More commonly the general obligation bonds of local governments are paid from ad valorem property taxes and other general revenues. Considered the most secure of all municipal debt.
Counterparty Name [Axis]
Counterparty Name [Axis]
Gross investment income
Gross Investment Income, Operating
Increase in number of shares authorized (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized
Common Shares
Common Stock [Member]
Vested (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Total investments available for sale
Fair Value
Debt Securities, Available-for-Sale
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Non-NEOs
Non-NEOs [Member]
Corporate debt securities
Corporate debt securities:
Corporate Debt Securities [Member]
Net decrease in cash
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation