Reinsurance - Impact of the Reinsurance Contracts on Premiums Written and Earned (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Premiums Written: | ||||||||||||||||
| Direct | $ 353,478 | $ 315,428 | $ 1,018,833 | $ 941,220 | ||||||||||||
| Assumed | (428) | (257) | (2,746) | 19,742 | ||||||||||||
| Gross written | 353,050 | 315,171 | 1,016,087 | 960,962 | ||||||||||||
| Ceded | (96,929) | (106,088) | (302,796) | (308,245) | ||||||||||||
| Net premiums written | 256,121 | 209,083 | 713,291 | 652,717 | ||||||||||||
| Premiums Earned: | ||||||||||||||||
| Direct | 306,226 | 289,287 | 886,675 | 808,921 | ||||||||||||
| Assumed | 9,846 | 11,792 | 76,427 | 95,169 | ||||||||||||
| Gross earned | 316,072 | [1] | 301,079 | [2] | 963,102 | [3] | 904,090 | [4] | ||||||||
| Ceded | (96,929) | (106,088) | (302,796) | (308,245) | ||||||||||||
| Net premiums earned | $ 219,143 | $ 194,991 | $ 660,306 | $ 595,845 | ||||||||||||
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- Definition Amount of earned premiums ceded to other entities used to offset the amount of written premiums. No definition available.
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- Definition Amount, before premiums ceded to other entities, of property and casualty direct and assumed premiums earned. No definition available.
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- Definition Amount of earned premiums assumed from other entities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of written premiums assumed from other entities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of earned premiums ceded to other entities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums written. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of direct and assumed premiums written. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums written. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- References No definition available.
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