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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Apr. 01, 2018
Foreign currency translation adjustments, tax $ 0 $ 0
Unrealized gains (losses) on marketable securities arising during period, net of tax 577 (718)
Reclassification adjustment for (gains) losses included in net income, net of tax (20) (78)
Amortization of prior service benefit included in net periodic pension and post-retirement benefit, net of ta $ (11) $ (18)