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Defined Benefit Pension Plans - Schedule of Amounts Recognized in the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] |  |
Plan assets in other long-term assets | $ 44 | $ 572
Current portion of pension benefit obligation in wages and benefits payable | 2,885 | 2,730
Long-term portion of pension benefit obligation | 98,712 | 91,522
Pension benefit obligation, net | $ 101,553 | $ 93,680

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