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v3.23.2

Investments (Narrative) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 USD ($) security | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) item security | Jun. 30, 2022 USD ($) | Dec. 31, 2022 USD ($) security
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Fair value | $ 439,471 |  | $ 439,471 |  | $ 486,836
Number of investments in a single issuer exceeds 10% of shareholders' equity | item |  |  | 0 |  |
Percent of shareholders equity benchmark for investments in a single issuer |  |  | 10.00% |  |
Number of debt securities | security | 570 |  | 570 |  | 591
Fair value of temporarily impaired securities | $ 434,016 |  | $ 434,016 |  | $ 474,847
Unrealized Losses | 57,329 |  | 57,329 |  | 61,531
Decrease in unrealized loss position |  |  | 4,200 |  |
Equity securities | 380 |  | 380 |  | 411
Debt Securities, Available-for-sale, Realized Gain (Loss) | (517) | $ (19) | (1,119) | $ (19) |
Proceeds from Sale of Debt Securities, Available-for-sale | 7,262 | $ 82 | 40,117 | $ 82 |
Corporate [Member] |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Fair value | $ 22,830 |  | $ 22,830 |  | $ 24,239
Number of debt securities | security | 51 |  | 51 |  | 46
Fair value of temporarily impaired securities | $ 22,830 |  | $ 22,830 |  | $ 22,589
Unrealized Losses | 3,496 |  | 3,496 |  | 2,077
Public Funds And Trust Deposits [Member] |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Fair value | $ 151,700 |  | $ 151,700 |  | $ 208,900
Equity Securities [Member] |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Number of equity investments | item |  |  | 1 |  |

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