Pensions - Schedule of Amounts in Accumulated Other Comprehensive Income Loss To Be Recognized Over Next Fiscal Year (Details) $ in Thousands	Dec. 31, 2019 USD ($)
UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year	$ 55
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	1,875
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year	93
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	(536)
Pension Plan [Member] | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year	(20)
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	(1,920)
Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year	(206)
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	$ (3,029)