Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2019

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

The following tables represent the fair value hierarchy as of June 30, 2019 and December 31, 2018, for those assets and liabilities that we measure at fair value on a recurring basis (in thousands):



	Fair Value Measurements at June 30, 2019 Using:
			Quoted Prices in				Significant
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Cash equivalents	$	35,437	$	7,242	$	28,195	$	—
Marketable securities:
Corporate debt securities	94,700		—		94,700		—
U.S. treasury and government agency securities	6,383		—		6,383		—
Certificates of deposit	8,000		—		8,000		—
Commercial paper	1,500		—		1,500		—
Total marketable securities	$	110,583	$	—	$	110,583	$	—
Total assets	$	146,020	$	7,242	$	138,778	$	—
Liabilities:
Contingent consideration - MuGard	$	311	$	—	$	—	$	311
Total liabilities	$	311	$	—	$	—	$	311



	Fair Value Measurements at December 31, 2018 Using:
			Quoted Prices in				Significant
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Cash equivalents	$	71,568	$	71,568	$	—	$	—
Corporate debt securities	113,097		—		113,097		—
U.S. treasury and government agency securities	10,323		—		10,323		—
Certificates of deposit	13,500		—		13,500		—
Commercial paper	3,995		—		3,995		—
Total assets	$	212,483	$	71,568	$	140,915	$	—
Liabilities:
Contingent consideration - MuGard	359		—		—		359
Total liabilities	$	359	$	—	$	—	$	359