Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Disclosures [Abstract]

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following table provides a reconciliation of the Level 3 earn-out liability measured at estimated fair value as of December 31, 2018 to June 30, 2019 (in thousands):

	Earn-out Liability
Accrued balance, January 1, 2019	$	47,400
Change in fair value of earn-out (included in income from operations as a separate line item)	(47,200		)
Accrued balance, June 30, 2019	$	200

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

The following table provides quantitative information about Level 3 inputs for fair value measurement of our earn-out liability as of December 31, 2018 and June 30, 2019. Significant increases or decreases in these inputs in isolation could result in a significant impact on our fair value measurement:

Simulation Input	As of June 30, 2019		As of December 31, 2018
Adjusted EBITDA Volatility	30.00	%	30.00	%
WACC	8.25	%	8.25	%
20-year risk free rate	2.31	%	2.87	%
Market price of risk	5.77	%	5.24	%
Cost of debt	4.13	%	5.25	%

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

Our assets and liabilities measured at fair value on a recurring basis consisted of the following (Level 1, 2 and 3 inputs as defined above) (in thousands):

	Fair value measurements at June 30, 2019
	Total carrying value		Quoted prices in active markets for identical assets (level 1)		Significant other observable inputs (level 2)		Significant unobservable inputs (level 3)
Assets:
Available for sale securities:
Short-term	$	21,863	$	—	$	21,863	$	—
Long-term	2,017		—		2,017		—
Foreign exchange forwards:
Prepaid expenses and other current assets	1,511		—		1,511		—
Other assets	560		—		560		—
Total Assets	$	25,951	$	—	$	25,951	$	—
Liabilities:
Earn-out liability	$	200	$	—	$	—	$	200
Total Liabilities	$	200	$	—	$	—	$	200

	Fair value measurements at December 31, 2018
	Total carrying value		Quoted prices in active markets for identical assets (level 1)		Significant other observable inputs (level 2)		Significant unobservable inputs (level 3)
Assets:
Available for sale securities:
Short-term	$	37,329	$	—	$	37,329	$	—
Long-term	2,025		—		2,025		—
Foreign exchange forwards:
Prepaid expenses and other current assets	187		—		187		—
Other assets	545		—		545		—
Total Assets	$	40,086	$	—	$	40,086	$	—
Liabilities:
Earn-out liability	$	47,400	$	—	$	—	$	47,400
Total Liabilities	$	47,400	$	—	$	—	$	47,400