Investments - Investment Income (Expense) Comprised Primarily of Interest and Dividends (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
Net Investment Income [Line Items] | ||||
Total investment income | $ 6,778 | $ 3,619 | $ 17,451 | $ 11,017 |
Less: Investment expenses | (704) | (822) | (2,114) | (2,376) |
Net investment income | 6,074 | 2,797 | 15,337 | 8,641 |
Available-for-sale debt securities | ||||
Net Investment Income [Line Items] | ||||
Investment income | 4,847 | 2,799 | 13,791 | 8,393 |
Equity securities | ||||
Net Investment Income [Line Items] | ||||
Investment income | 740 | 544 | 1,965 | 1,787 |
Cash and cash equivalents | ||||
Net Investment Income [Line Items] | ||||
Investment income | 1,069 | 2 | 1,324 | 28 |
Other | ||||
Net Investment Income [Line Items] | ||||
Investment income | $ 122 | $ 274 | $ 371 | $ 809 |