Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Effective income tax rate percentage	43.00%	702.00%	36.50%	(2038.90%)
Fair value of contingent consideration adjustment expense (income)	$ 1,884	$ 7,276	$ 844	$ 9,187
Unfavorable impact on effective tax rate due to adoption of ASU 2016-09	200		200
Valuation Allowance [Line Items]
Benefit to income tax expense	(3,391)	$ (2,710)	$ (5,727)	$ (4,782)
Peruvian deferred tax assets
Valuation Allowance [Line Items]
Release of valuation allowance	800
Benefit to income tax expense	$ 200