Pension Plans - Weighted Average Assumptions Used to Determine Net Periodic Pension Cost (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.40%	3.73%	3.83%
Expected return on plan assets	5.75%	5.75%	5.75%
Non-U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.30%	2.16%	2.12%
Expected return on plan assets	3.50%	3.48%	3.54%
Rate of compensation increase	2.63%	2.39%	3.03%