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Insurance Operations - Additional Information (Detail) | 9 Months Ended
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Sep. 30, 2018 USD ($)
UPCIC [Member] |
Statutory Accounting Practices [Line Items] |
Ordinary dividend capacity accordance with Florida Insurance Code | $ 36,200,000
Dividend paid to immediate parent company | 0
APPCIC [Member] |
Statutory Accounting Practices [Line Items] |
Dividend paid to immediate parent company | $ 0
UPCIC and APPCIC [Member] |
Statutory Accounting Practices [Line Items] |
Minimum capitalization rate | 10.00%
Minimum capital required | greater of ten percent of the insurer’s total liabilities but not less than $10.0 million.
UPCIC and APPCIC [Member] | Minimum [Member] |
Statutory Accounting Practices [Line Items] |
Minimum capitalization amount | $ 10,000,000

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