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v3.22.1

Fair Value (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Estimated Fair Value | $ 408,037 | $ 406,549
Mutual funds held in deferred compensation trust |  |
Mutual Funds Held In Deferred Compensation Trust | 1,410 | 1,510
Level 1 | Mutual funds held in deferred compensation trust |  |
Mutual Funds Held In Deferred Compensation Trust | 0 | 0
Level 1 | U.S. Treasuries |  |
Estimated Fair Value | 0 | 0
Level 2 | Mutual funds held in deferred compensation trust |  |
Mutual Funds Held In Deferred Compensation Trust | 1,410 | 1,510
Level 2 | U.S. Treasuries |  |
Estimated Fair Value | 10,369 | 7,889
Level 3 | U.S. Government Sponsored Enterprises |  |
Estimated Fair Value | 0 | 0
Level 3 | Mortgage-Backed Securities |  |
Estimated Fair Value | 0 | 0
Level 3 | Mutual funds held in deferred compensation trust |  |
Mutual Funds Held In Deferred Compensation Trust | 0 | 0
US Treasury Securities [Member] |  |
Estimated Fair Value | 10,369 | 7,889
U.S. Government Sponsored Enterprises [Member] |  |
Estimated Fair Value | 13,408 | 14,267
U.S. Government Sponsored Enterprises [Member] | Level 1 |  |
Estimated Fair Value | 0 | 0
Mortgage-Backed Securities |  |
Estimated Fair Value | 224,655 | 217,152
Mortgage-Backed Securities | Level 1 |  |
Estimated Fair Value | 0 | 0
State and Political Subdivisions |  |
Estimated Fair Value | 159,605 | 167,241
State and Political Subdivisions | Level 1 |  |
Estimated Fair Value | 0 | 0
State and Political Subdivisions | Level 2 |  |
Estimated Fair Value | 159,605 | 167,241
State and Political Subdivisions | Level 3 |  |
Estimated Fair Value | 0 | 0
U.S. Government Sponsored Enterprises | Level 2 |  |
Estimated Fair Value | 13,408 | 14,267
Mortgage-Backed Securities | Level 2 |  |
Estimated Fair Value | 224,655 | 217,152
U.S. Treasuries | Level 3 |  |
Estimated Fair Value | $ 0 | $ 0

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