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Consolidated Statements of Changes in Equity (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Statement Of Stockholders Equity [Abstract] |  |  |
Unrealized loss on marketable security, income tax effect |  |  | $ (809)
Unrealized derivative gains and losses on cash flow hedges, income tax effect | $ 928 | $ 667 | 2,490
Minimum pension liability, income tax effect | (2,048) | (1,650) | $ (983)
Cumulative-effect adjustment due to adoption of ASU 2016-01, income tax effect |  | 1,045 |
Foreign currency translation adjustments, income tax effect | $ 3,693 | $ 6,824 |

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