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Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Statement of Comprehensive Income [Abstract] |  |
Net income | $ 39,420 | $ 31,458
Other comprehensive income, before tax: |  |
Accumulated postretirement benefit obligation adjustment | (143) | 0
Unrealized gains on investments arising during the period | 1,253 | 2,727
Reclassification adjustment for sale of securities included in net income | (30) | 0
Reclassification adjustment for write-down of securities included in net income | 482 | 0
Other comprehensive income, before tax | 1,562 | 2,727
Income tax benefit related to postretirement health benefits | (31) | 0
Income tax expense related to unrealized gains on investments arising during the year | 262 | 576
Income tax benefit related to reclassification adjustment for sale of securities included in net income | (6) | 0
Income tax expense related to reclassification adjustment for write-down of securities included in net income | 111 | 0
Net income tax expense on other comprehensive income | 336 | 576
Other comprehensive income | 1,226 | 2,151
Comprehensive Income | $ 40,646 | $ 33,609

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