Investment Securities - Additional Information (Details) - USD ($) |
Mar. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Investments, Debt and Equity Securities [Abstract] | ||
| Held-to-maturity debt securities, allowance for credit loss | $ 0 | $ 0 |
| Available-for-sale debt securities, allowance for credit loss | 0 | 0 |
| Deposits with various states and regulatory bodies | $ 11,200,000 | $ 11,100,000 |