Pension and Postretirement Benefit Plans - Significant Weighted Average Assumptions Used in Measurement of Pension Obligations (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
United States Pension Plan of US Entity [Member]
Pension benefit obligations:
Discount rate	3.92%	4.13%	3.81%
Net periodic benefit cost:
Discount rate	3.29%	3.81%	4.63%
Expected return on plan assets	6.50%	7.00%	7.00%
Foreign Pension Plan [Member]
Pension benefit obligations:
Discount rate	2.48%	2.83%	3.75%
Net periodic benefit cost:
Discount rate	2.56%	3.75%	4.15%
Rate of compensation increase	3.12%	4.83%	3.77%
Expected return on plan assets	5.42%	5.87%	3.41%