Investments (Narrative) (Details) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
|
Sep. 30, 2022
USD ($)
security
|
Sep. 30, 2021
USD ($)
|
Sep. 30, 2022
USD ($)
security
|
Sep. 30, 2021
USD ($)
|
Dec. 31, 2021
security
|
|
| Schedule of Available-for-sale Securities [Line Items] | |||||
| Gross gains on investments | $ 500 | $ 1,100 | $ 1,700 | $ 5,800 | |
| Gross losses on investments | 5 | 100 | 26 | 500 | |
| Proceeds from sale of investment securities | $ 200 | $ 1,100 | 4,700 | 16,900 | |
| Realized gain (loss) on sale of securities | $ 0 | $ 600 | |||
| Debt Securities [Member] | |||||
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] | |||||
| Number of debt securities with unrealized loss | security | 249 | 249 | 100 | ||
| Number of debt securities with unrealized loss, less than 12 months | security | 211 | 211 | 74 | ||
| Number of debt securities with unrealized loss, greater than 12 months | security | 38 | 38 | 26 | ||