Employee Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Contribution Plan Disclosure [Line Items]
Minimum age for participation	18 years
Minimum time at the company for participation	90 days
Total paid into 401(k)	$ 2,300	$ 2,000	$ 1,800
Non-US
Defined Contribution Plan Disclosure [Line Items]
Total paid into 401(k)	$ 1,134	$ 893	$ 912
Minimum | Non-US
Defined Contribution Plan Disclosure [Line Items]
Employer matching, percent of gross pay	2.00%
Maximum | Non-US
Defined Contribution Plan Disclosure [Line Items]
Employer matching, percent of gross pay	31.50%
Management | Minimum | Non-US
Defined Contribution Plan Disclosure [Line Items]
Employer matching, percent of gross pay	2.00%
Management | Maximum | Non-US
Defined Contribution Plan Disclosure [Line Items]
Employer matching, percent of gross pay	32.00%