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v3.22.4

Investments - Narrative (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($) security | Dec. 31, 2021 USD ($) security | Dec. 31, 2020 USD ($)
Debt Securities, Available-for-sale [Line Items] |  |  |
Number of investment securities in unrealized loss position | security | 2,578 | 1,180 |
Impairment loss | $ 12,728 | $ 0 | $ 429
Other invested assets | 257,941 | 170,472 |
Income from other invested assets | 28,676 | 56,386 | (215)
Fair value of investments deposited with insurance regulatory authorities to meet statutory requirements | 9,100 | 9,700 |
Essent Re |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Fair value of the required investments on deposit in trusts | 972,400 | 982,600 |
Essent Guaranty |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Assets on deposit under reinsurance agreement | 8,600 | 8,500 |
Assets on deposit for the benefit of the sponsor | 9,100 | $ 9,000 |
Limited Partnership Investment |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Other assets, fair value | 165,700 |  |
Investment company, committed capital | $ 42,900 |  |
Limited Partnership Investment | Minimum |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Investment company, asset liquidation period | 2 years |  |
Limited Partnership Investment | Maximum |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Investment company, asset liquidation period | 9 years |  |
Limited Partnership Investment | Revision adjustment |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Income from other invested assets |  |  | $ 7,600
Securities | Credit Concentration Risk | Internal Investment Grade |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Concentration risk, percentage | 98.00% |  |

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