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Comprehensive Income - Components of AOCI (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Accumulated Other Comprehensive Income (AOCI) |  |  |  |
Beginning balance |  |  | $ 261,084 |
Other comprehensive income (loss) before reclassification | $ (5,809) | $ (10,679) | (3,560) | $ (36,009)
Amounts reclassified from accumulated other comprehensive income (loss) | 22 | 122 | 1,013 | (362)
Net current period other comprehensive income (loss) | (5,787) | (10,557) | (2,547) | (36,371)
Ending balance | 271,416 |  | 271,416 |
Unrealized gains (losses) on available for-sale securities |  |  |  |
Accumulated Other Comprehensive Income (AOCI) |  |  |  |
Beginning balance | (31,674) | (26,203) | (34,829) | 147
Other comprehensive income (loss) before reclassification | (5,885) | (10,796) | (3,897) | (36,648)
Amounts reclassified from accumulated other comprehensive income (loss) | 0 | 0 | 1,167 | (498)
Net current period other comprehensive income (loss) | (5,885) | (10,796) | (2,730) | (37,146)
Ending balance | (37,559) | (36,999) | (37,559) | (36,999)
Defined benefit pension plan items |  |  |  |
Accumulated Other Comprehensive Income (AOCI) |  |  |  |
Beginning balance | (2,824) | (3,385) | (3,129) | (4,069)
Other comprehensive income (loss) before reclassification | 76 | 117 | 337 | 639
Amounts reclassified from accumulated other comprehensive income (loss) | 22 | 80 | 66 | 242
Net current period other comprehensive income (loss) | 98 | 197 | 403 | 881
Ending balance | (2,726) | (3,188) | (2,726) | (3,188)
Investment hedge |  |  |  |
Accumulated Other Comprehensive Income (AOCI) |  |  |  |
Beginning balance | 34 | 168 | 254 | 316
Other comprehensive income (loss) before reclassification | 0 | 0 | 0 | 0
Amounts reclassified from accumulated other comprehensive income (loss) | 0 | 42 | (220) | (106)
Net current period other comprehensive income (loss) | 0 | 42 | (220) | (106)
Ending balance | 34 | 210 | 34 | 210
Accumulated other comprehensive income (loss) |  |  |  |
Accumulated Other Comprehensive Income (AOCI) |  |  |  |
Beginning balance | (34,464) | (29,420) | (37,704) | (3,606)
Ending balance | $ (40,251) | $ (39,977) | $ (40,251) | $ (39,977)

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