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Statutory Accounting - Schedule of Statutory Net Income, Statutory Surplus and Contingency Reserve Liability (Details) - Affiliated Entity - Essent Guaranty - USD ($) $ in Thousands | 6 Months Ended |
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Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Dividends Restrictions |  |  |
Statutory net income | $ 248,689 | $ 261,082 |
Statutory surplus | 1,150,106 |  | $ 1,101,894
Contingency reserve liability | $ 2,564,039 |  | $ 2,492,487

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- Definition 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. + References No definition available. + Details
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- 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/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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- Definition Amount of net income for the period determined using accounting principles prescribed or permitted by insurance regulators. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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