Other Employee Benefit Plans (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Change in benefit obligation:
Benefit obligation	$ 3,800	$ 3,600
Unfunded status	3,800	$ (3,600)
Defined benefit pension plan for employees outside the United States
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	$ 600
Funded status and projected benefit obligation:
Discount rate	0.80%	1.40%