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Insurance Operations - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
UPCIC |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |
Ordinary dividend capacity accordance with Florida Insurance Code | $ 2,100,000 |  | $ 2,100,000 |
Dividends |  | $ 0 | $ 0 |
APPCIC |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |
Dividends | 0 |  |  | $ 0
UPCIC and APPCIC |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |
Minimum capitalization rate |  |  | 10.00% |
UPCIC and APPCIC | Minimum |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |
Minimum capitalization amount | $ 10,000,000.0 |  | $ 10,000,000.0 |

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