Fair Value Measurement (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities

	Balance at January 1,		Payments		Acquisitions	Change in estimate		Balance at September 30,
2018
Liabilities:
Contingent consideration	$	10,000	(7,000	)	—	—		$	3,000
	Balance at January 1,		Payments		Acquisitions	Change in estimate		Balance at December 31,
2017
Liabilities:
Contingent consideration	$	7,948	(7,359	)	20,617	(11,206	)	$	10,000

The Company’s financial assets and liabilities subject to fair value measurements as of September 30, 2018 and December 31, 2017 are as follows:

			September 30, 2018
			Fair Value Measurements
	Fair value		Level 1		Level 2		Level 3
Assets:
Cash equivalents	$	89,782	$	89,782	$	—	$	—
Current marketable securities – available for sale	57,896		57,896		—		—
Forward contracts	262		—		262		—
Total assets	$	147,940	$	147,678	$	262	$	—
Liabilities:
Contingent consideration	$	3,000	$	—	$	—	$	3,000
Total liabilities	$	3,000	$	—	$	—	$	3,000

			December 31, 2017
			Fair Value Measurements
	Fair value		Level 1		Level 2		Level 3
Assets:
Cash equivalents	$	58,436	$	58,436	$	—	$	—
Current marketable securities – available for sale	64,027		64,027		—		—
Long-term marketable securities – available for sale	29,523		29,523		—		—
Total assets	$	151,986	$	151,986	$	—	$	—
Liabilities:
Contingent consideration	$	10,000	$	—	$	—	$	10,000
Forward contracts	783		—		783		—
Total liabilities	$	10,783	$	—	$	783	$	10,000