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Retirement Benefits - Pretax Amounts Recognized in Accumulated Other Comprehensive Income Loss (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($)
Pension Benefits | U.S. Plans |
Defined Benefit Plan Disclosure [Line Items] |
Net gain (loss) in current year | $ 5,971
Prior service cost | (182)
Amortization of prior service cost (credit) | 27
Amortization of net loss (gain) | 2,046
Exchange rate effect on amounts in other comprehensive income | 0
Total | 7,862
Pension Benefits | Non-U.S. Plans |
Defined Benefit Plan Disclosure [Line Items] |
Net gain (loss) in current year | (4,829)
Prior service cost | 2
Amortization of prior service cost (credit) | (22)
Amortization of net loss (gain) | 1,367
Exchange rate effect on amounts in other comprehensive income | (1,758)
Total | (5,240)
Other Benefits |
Defined Benefit Plan Disclosure [Line Items] |
Net gain (loss) in current year | (3,241)
Prior service cost | 2,905
Amortization of prior service cost (credit) | (37)
Amortization of net loss (gain) | (504)
Exchange rate effect on amounts in other comprehensive income | 2
Total | $ (875)

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