Fair Value of Financial Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2019

Fair Value of Financial Assets and Liabilities

Schedule of assets and liabilities measured at fair value on a recurring basis

	September 30, 2019
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	23,567	$	—	$	—	$	23,567
Marketable securities		—		61,530		—		61,530
Total assets	$	23,567	$	61,530	$	—	$	85,097
Liabilities:
Acquisition-related contingent consideration	$	—	$	—	$	1,668	$	1,668
Total liabilities	$	—	$	—	$	1,668	$	1,668

	December 31, 2018
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	49,766	$	4,992	$	—	$	54,758
Marketable securities		—		110,953		—		110,953
Total assets	$	49,766	$	115,945	$	—	$	165,711
Liabilities:
Acquisition-related contingent consideration	$	—	$	—	$	934	$	934
Total liabilities	$	—	$	—	$	934	$	934

Schedule of the fair value of available for sale marketable securities

	September 30, 2019
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gain		Loss		Value
Marketable securities:
Corporate debt securities	$	14,359	$	13	$	—	$	14,372
Commercial paper		28,643		—		(1)		28,642
Asset-backed securities		5,998		4		—		6,002
U.S. government agency debt securities		12,514		—		—		12,514
Total marketable securities	$	61,514	$	17	$	(1)	$	61,530

	December 31, 2018
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gain		Loss		Value
Marketable securities:
Corporate debt securities	$	5,030	$	—	$	(14)	$	5,016
Commercial paper		67,159		—		—		67,159
Asset-backed securities		21,745		—		(8)		21,737
U.S. government agency debt securities		17,044		—		(3)		17,041
Total marketable securities	$	110,978	$	—	$	(25)	$	110,953