Investment Securities Summary of Gains and Losses from Equity and Debt Securities, and Losses from Other-than-Temporary Impairment (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2022 |
Jun. 30, 2021 |
Jun. 30, 2022 |
Jun. 30, 2021 |
|
| Investments, Debt and Equity Securities [Abstract] | ||||
| Debt securities, Gross Realized Gains | $ 8 | $ 465 | $ 1,554 | $ 34,481 |
| Debt securities, Gross Realized Losses | 0 | (429) | (1,527) | (970) |
| Debt securities, Net Gains (Losses) | $ 8 | $ 36 | $ 27 | $ 33,511 |