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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Statement of Comprehensive Income [Abstract] |  |  |  |
Net income | $ 33,586 | $ 27,718 | $ 45,786 | $ 39,107
Defined benefit pension plans |  |  |  |
Amortization of actuarial (gain) loss, net of tax | 150 | (33) | 301 | (65)
Amortization of actuarial (gain) loss, tax | 51 | (11) | 102 | (22)
Effects of Settlements, net of tax | 0 | 0 | 64 | 0
Effect of settlements, tax effect | 0 | 0 | 22 | 0
Other comprehensive income (loss), net of tax | 150 | (33) | 365 | (65)
Comprehensive income | $ 33,736 | $ 27,685 | $ 46,151 | $ 39,042

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