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Sale of Renewal Rights - Additional Information (Detail) - USD ($) $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Aug. 08, 2022 | Nov. 30, 2021 | Oct. 26, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Unearned premiums |  |  |  | $ 269,353 | $ 316,566 |
Payments of sublease expected amount |  |  |  | 331 | 55 | $ 0
Impairment of goodwill |  |  |  | 578 | 1,123 |
Impairment loss on software |  |  |  | 508 | 2,000 | 0
Impairment of lease cost |  |  |  | 1,337 | 1,515 | $ 0
American Reliable | Everett Cash Mutual Insurance |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Acquisition amount |  |  |  | 10,000 |  |
Renewal Rights Related to Manufactured and Dwelling Homes Business |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Gross proceeds from Sale of Renewal Rights |  |  | $ 28,000 |  |  |
Net capital amount received |  |  | 65,000 |  |  |
Unearned premiums |  | $ 33,800 | 42,000 |  |  |
Payments of sublease expected amount |  |  | $ 2,400 |  |  |
Percentage of risk assumed for policies under renewal rights agreement |  | 100.00% | 100.00% |  |  |
Impairment of intangible assets |  |  |  |  | 200 |
Ceding commission percentage |  | 40.00% |  |  |  |
Claims administration fee |  | 4.00% |  |  |  |
Renewal Rights Related to Manufactured and Dwelling Homes Business | Other Income |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Gross proceeds from Sale of Renewal Rights |  |  |  |  | 28,000 |
Renewal Rights Related to Manufactured and Dwelling Homes Business | Corporate and Other Operating Expenses |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Impairment of goodwill |  |  |  |  | 1,100 |
Impairment loss on software |  |  |  |  | 2,000 |
Impairment of lease cost |  |  |  | 600 | 1,500 |
Legal expenses and merger and acquisition fees |  |  |  |  | $ 2,400 |
Renewal Rights Related to Manufactured and Dwelling Homes Business | Early Termination Clause |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Payments of sublease expected amount |  |  |  | 1,600 |  |
Renewal Rights Related to Farm Ranch and Stable Business |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Impairment of intangible assets |  |  |  | $ 5,100 |  |
Impairment, Intangible Asset, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  | Corporate and other operating expenses |  |
Renewal Rights Related to Farm Ranch and Stable Business | Other Income |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Gross proceeds from Sale of Renewal Rights | $ 30,000 |  |  | $ 0 |  |
Renewal Rights Related to Farm Ranch and Stable Business | Corporate and Other Operating Expenses |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Impairment of goodwill |  |  |  | 600 |  |
Impairment loss on software |  |  |  | 500 |  |
Impairment of lease cost |  |  |  | 500 |  |
Legal expenses and merger and acquisition fees |  |  |  | $ 2,500 |  |

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