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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Foreign currency translation adjustments, tax $ 0 $ 0 $ 0
Unrealized gains (losses) on marketable securities arising during period, net of tax (3,388) (578) 1,629
Reclassification adjustment for (gains) losses included in net income, net of tax 25 (277) (665)
Amortization of prior service credit, net of tax (2) (2) (2)
Cash flow hedges Unrealized gains $ (708) $ 0 $ 0