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Comprehensive Income - Reclassification adjustments out of accumulated other comprehensive loss (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Amortization of defined benefit pension items |  |  |
Prior service cost |  | $ 5 | $ 5
Actuarial losses |  | 94 | 129
Total before tax |  | 99 | 134
Tax benefit | [1] | (26) | (35)
Net of tax |  | $ 73 | $ 99
[1] | These amounts were included in the computation of pension expense. See Note 7 for additional details.

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