Insurance Operations - Statutory Capital and Surplus, and an Amount Representing Ten Percent of Total Liabilities for both UPCIC and APPCIC (Detail) - USD ($) $ in Thousands |
Sep. 30, 2022 |
Dec. 31, 2021 |
|---|---|---|
| UPCIC | ||
| Statutory Accounting Practices [Line Items] | ||
| Statutory capital and surplus | $ 386,934 | $ 378,750 |
| Ten percent of total liabilities | 142,514 | 122,292 |
| APPCIC | ||
| Statutory Accounting Practices [Line Items] | ||
| Statutory capital and surplus | 22,446 | 16,104 |
| Ten percent of total liabilities | $ 2,145 | $ 649 |