Employee Benefits Plans (Details 1)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S.
Summary of weighted-average actuarial assumptions used in determining annual pension expense
Discount rate	4.50%	4.15%	5.00%
Rate of increase in compensation levels	3.00%	3.00%	3.00%
Expected long-term rate of return on plan assets	5.85%	5.95%	6.50%
Gain and loss amortization period (years)	23 years	23 years	23 years
Foreign
Summary of weighted-average actuarial assumptions used in determining annual pension expense
Discount rate	3.70%	3.70%	4.57%
Rate of increase in compensation levels	3.10%	3.10%	3.09%
Expected long-term rate of return on plan assets	5.44%	5.50%	5.94%
Gain and loss amortization period (years)	27 years	27 years	27 years