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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Statement of Comprehensive Income [Abstract] |  |  |  |
Net income | $ 21,713 | $ 20,142 | $ 43,395 | $ 38,478
Change in securities available for sale: |  |  |  |
Unrealized holding gain/(loss) on securities available-for-sale arising during the period | 8,893 | (2,242) | 19,853 | (11,402)
Reclassification adjustment for (gains)/losses included in net income | (65) | 0 | (88) | 6
Net securities gain/(loss) activity during the period | 8,828 | (2,242) | 19,765 | (11,396)
Tax effect | (1,853) | 471 | (4,151) | 2,499
Net of tax amount | 6,975 | (1,771) | 15,614 | (8,897)
Defined benefit pension plans: |  |  |  |
Amortization of net actuarial loss | 53 | 67 | 103 | 133
Net gain on activity during the period | 53 | 67 | 103 | 133
Tax effect | (15) | (18) | (26) | (35)
Net of tax amount | 38 | 49 | 77 | 98
Total other comprehensive income, net of tax | 7,013 | (1,722) | 15,691 | (8,799)
Comprehensive income | $ 28,726 | $ 18,420 | $ 59,086 | $ 29,679

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